Focus on:
All days
8 Aug 2016
9 Aug 2016
10 Aug 2016
11 Aug 2016
12 Aug 2016
13 Aug 2016
14 Aug 2016
15 Aug 2016
16 Aug 2016
17 Aug 2016
18 Aug 2016
19 Aug 2016
20 Aug 2016
21 Aug 2016
22 Aug 2016
23 Aug 2016
24 Aug 2016
25 Aug 2016
26 Aug 2016
27 Aug 2016
28 Aug 2016
29 Aug 2016
30 Aug 2016
31 Aug 2016
1 Sept 2016
2 Sept 2016
Indico style
Indico style - inline minutes
Indico style - numbered
Indico style - numbered + minutes
Indico Weeks View
Back to Conference View
Choose Timezone
Use the event/category timezone
Specify a timezone
Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre
Africa/Brazzaville
Africa/Bujumbura
Africa/Cairo
Africa/Casablanca
Africa/Ceuta
Africa/Conakry
Africa/Dakar
Africa/Dar_es_Salaam
Africa/Djibouti
Africa/Douala
Africa/El_Aaiun
Africa/Freetown
Africa/Gaborone
Africa/Harare
Africa/Johannesburg
Africa/Juba
Africa/Kampala
Africa/Khartoum
Africa/Kigali
Africa/Kinshasa
Africa/Lagos
Africa/Libreville
Africa/Lome
Africa/Luanda
Africa/Lubumbashi
Africa/Lusaka
Africa/Malabo
Africa/Maputo
Africa/Maseru
Africa/Mbabane
Africa/Mogadishu
Africa/Monrovia
Africa/Nairobi
Africa/Ndjamena
Africa/Niamey
Africa/Nouakchott
Africa/Ouagadougou
Africa/Porto-Novo
Africa/Sao_Tome
Africa/Tripoli
Africa/Tunis
Africa/Windhoek
America/Adak
America/Anchorage
America/Anguilla
America/Antigua
America/Araguaina
America/Argentina/Buenos_Aires
America/Argentina/Catamarca
America/Argentina/Cordoba
America/Argentina/Jujuy
America/Argentina/La_Rioja
America/Argentina/Mendoza
America/Argentina/Rio_Gallegos
America/Argentina/Salta
America/Argentina/San_Juan
America/Argentina/San_Luis
America/Argentina/Tucuman
America/Argentina/Ushuaia
America/Aruba
America/Asuncion
America/Atikokan
America/Bahia
America/Bahia_Banderas
America/Barbados
America/Belem
America/Belize
America/Blanc-Sablon
America/Boa_Vista
America/Bogota
America/Boise
America/Cambridge_Bay
America/Campo_Grande
America/Cancun
America/Caracas
America/Cayenne
America/Cayman
America/Chicago
America/Chihuahua
America/Ciudad_Juarez
America/Costa_Rica
America/Creston
America/Cuiaba
America/Curacao
America/Danmarkshavn
America/Dawson
America/Dawson_Creek
America/Denver
America/Detroit
America/Dominica
America/Edmonton
America/Eirunepe
America/El_Salvador
America/Fort_Nelson
America/Fortaleza
America/Glace_Bay
America/Goose_Bay
America/Grand_Turk
America/Grenada
America/Guadeloupe
America/Guatemala
America/Guayaquil
America/Guyana
America/Halifax
America/Havana
America/Hermosillo
America/Indiana/Indianapolis
America/Indiana/Knox
America/Indiana/Marengo
America/Indiana/Petersburg
America/Indiana/Tell_City
America/Indiana/Vevay
America/Indiana/Vincennes
America/Indiana/Winamac
America/Inuvik
America/Iqaluit
America/Jamaica
America/Juneau
America/Kentucky/Louisville
America/Kentucky/Monticello
America/Kralendijk
America/La_Paz
America/Lima
America/Los_Angeles
America/Lower_Princes
America/Maceio
America/Managua
America/Manaus
America/Marigot
America/Martinique
America/Matamoros
America/Mazatlan
America/Menominee
America/Merida
America/Metlakatla
America/Mexico_City
America/Miquelon
America/Moncton
America/Monterrey
America/Montevideo
America/Montserrat
America/Nassau
America/New_York
America/Nome
America/Noronha
America/North_Dakota/Beulah
America/North_Dakota/Center
America/North_Dakota/New_Salem
America/Nuuk
America/Ojinaga
America/Panama
America/Paramaribo
America/Phoenix
America/Port-au-Prince
America/Port_of_Spain
America/Porto_Velho
America/Puerto_Rico
America/Punta_Arenas
America/Rankin_Inlet
America/Recife
America/Regina
America/Resolute
America/Rio_Branco
America/Santarem
America/Santiago
America/Santo_Domingo
America/Sao_Paulo
America/Scoresbysund
America/Sitka
America/St_Barthelemy
America/St_Johns
America/St_Kitts
America/St_Lucia
America/St_Thomas
America/St_Vincent
America/Swift_Current
America/Tegucigalpa
America/Thule
America/Tijuana
America/Toronto
America/Tortola
America/Vancouver
America/Whitehorse
America/Winnipeg
America/Yakutat
Antarctica/Casey
Antarctica/Davis
Antarctica/DumontDUrville
Antarctica/Macquarie
Antarctica/Mawson
Antarctica/McMurdo
Antarctica/Palmer
Antarctica/Rothera
Antarctica/Syowa
Antarctica/Troll
Antarctica/Vostok
Arctic/Longyearbyen
Asia/Aden
Asia/Almaty
Asia/Amman
Asia/Anadyr
Asia/Aqtau
Asia/Aqtobe
Asia/Ashgabat
Asia/Atyrau
Asia/Baghdad
Asia/Bahrain
Asia/Baku
Asia/Bangkok
Asia/Barnaul
Asia/Beirut
Asia/Bishkek
Asia/Brunei
Asia/Chita
Asia/Choibalsan
Asia/Colombo
Asia/Damascus
Asia/Dhaka
Asia/Dili
Asia/Dubai
Asia/Dushanbe
Asia/Famagusta
Asia/Gaza
Asia/Hebron
Asia/Ho_Chi_Minh
Asia/Hong_Kong
Asia/Hovd
Asia/Irkutsk
Asia/Jakarta
Asia/Jayapura
Asia/Jerusalem
Asia/Kabul
Asia/Kamchatka
Asia/Karachi
Asia/Kathmandu
Asia/Khandyga
Asia/Kolkata
Asia/Krasnoyarsk
Asia/Kuala_Lumpur
Asia/Kuching
Asia/Kuwait
Asia/Macau
Asia/Magadan
Asia/Makassar
Asia/Manila
Asia/Muscat
Asia/Nicosia
Asia/Novokuznetsk
Asia/Novosibirsk
Asia/Omsk
Asia/Oral
Asia/Phnom_Penh
Asia/Pontianak
Asia/Pyongyang
Asia/Qatar
Asia/Qostanay
Asia/Qyzylorda
Asia/Riyadh
Asia/Sakhalin
Asia/Samarkand
Asia/Seoul
Asia/Shanghai
Asia/Singapore
Asia/Srednekolymsk
Asia/Taipei
Asia/Tashkent
Asia/Tbilisi
Asia/Tehran
Asia/Thimphu
Asia/Tokyo
Asia/Tomsk
Asia/Ulaanbaatar
Asia/Urumqi
Asia/Ust-Nera
Asia/Vientiane
Asia/Vladivostok
Asia/Yakutsk
Asia/Yangon
Asia/Yekaterinburg
Asia/Yerevan
Atlantic/Azores
Atlantic/Bermuda
Atlantic/Canary
Atlantic/Cape_Verde
Atlantic/Faroe
Atlantic/Madeira
Atlantic/Reykjavik
Atlantic/South_Georgia
Atlantic/St_Helena
Atlantic/Stanley
Australia/Adelaide
Australia/Brisbane
Australia/Broken_Hill
Australia/Darwin
Australia/Eucla
Australia/Hobart
Australia/Lindeman
Australia/Lord_Howe
Australia/Melbourne
Australia/Perth
Australia/Sydney
Canada/Atlantic
Canada/Central
Canada/Eastern
Canada/Mountain
Canada/Newfoundland
Canada/Pacific
Europe/Amsterdam
Europe/Andorra
Europe/Astrakhan
Europe/Athens
Europe/Belgrade
Europe/Berlin
Europe/Bratislava
Europe/Brussels
Europe/Bucharest
Europe/Budapest
Europe/Busingen
Europe/Chisinau
Europe/Copenhagen
Europe/Dublin
Europe/Gibraltar
Europe/Guernsey
Europe/Helsinki
Europe/Isle_of_Man
Europe/Istanbul
Europe/Jersey
Europe/Kaliningrad
Europe/Kirov
Europe/Kyiv
Europe/Lisbon
Europe/Ljubljana
Europe/London
Europe/Luxembourg
Europe/Madrid
Europe/Malta
Europe/Mariehamn
Europe/Minsk
Europe/Monaco
Europe/Moscow
Europe/Oslo
Europe/Paris
Europe/Podgorica
Europe/Prague
Europe/Riga
Europe/Rome
Europe/Samara
Europe/San_Marino
Europe/Sarajevo
Europe/Saratov
Europe/Simferopol
Europe/Skopje
Europe/Sofia
Europe/Stockholm
Europe/Tallinn
Europe/Tirane
Europe/Ulyanovsk
Europe/Vaduz
Europe/Vatican
Europe/Vienna
Europe/Vilnius
Europe/Volgograd
Europe/Warsaw
Europe/Zagreb
Europe/Zurich
GMT
Indian/Antananarivo
Indian/Chagos
Indian/Christmas
Indian/Cocos
Indian/Comoro
Indian/Kerguelen
Indian/Mahe
Indian/Maldives
Indian/Mauritius
Indian/Mayotte
Indian/Reunion
Pacific/Apia
Pacific/Auckland
Pacific/Bougainville
Pacific/Chatham
Pacific/Chuuk
Pacific/Easter
Pacific/Efate
Pacific/Fakaofo
Pacific/Fiji
Pacific/Funafuti
Pacific/Galapagos
Pacific/Gambier
Pacific/Guadalcanal
Pacific/Guam
Pacific/Honolulu
Pacific/Kanton
Pacific/Kiritimati
Pacific/Kosrae
Pacific/Kwajalein
Pacific/Majuro
Pacific/Marquesas
Pacific/Midway
Pacific/Nauru
Pacific/Niue
Pacific/Norfolk
Pacific/Noumea
Pacific/Pago_Pago
Pacific/Palau
Pacific/Pitcairn
Pacific/Pohnpei
Pacific/Port_Moresby
Pacific/Rarotonga
Pacific/Saipan
Pacific/Tahiti
Pacific/Tarawa
Pacific/Tongatapu
Pacific/Wake
Pacific/Wallis
US/Alaska
US/Arizona
US/Central
US/Eastern
US/Hawaii
US/Mountain
US/Pacific
UTC
Save
Europe/Stockholm
English (United Kingdom)
Deutsch (Deutschland)
English (United Kingdom)
English (United States)
Español (España)
Français (France)
Italiano (Italia)
Polski (Polska)
Português (Brasil)
Türkçe (Türkiye)
Čeština (Česko)
Монгол (Монгол)
Українська (Україна)
中文 (中国)
Login
Black Holes and Emergent Spacetime
from
Monday, 8 August 2016 (09:00)
to
Friday, 2 September 2016 (18:00)
Monday, 8 August 2016
15:30
Bulk solutions for non-trivial boundary topology
-
Simon Ross
(
Durham University
)
Bulk solutions for non-trivial boundary topology
Simon Ross
(
Durham University
)
15:30 - 16:30
Room: Svedberg FD5
I will discuss two recent explorations of the AdS_3/CFT_2 correspondence for non-trivial boundary topology: calculating the action for bulk handlebodies for Riemann surfaces, and obtaining the bulk saddles and their action for non-orientable boundaries.
Tuesday, 9 August 2016
11:00
Boundary effects in entanglement entropy
-
Sergey Solodukhin
(
University of Tours
)
Boundary effects in entanglement entropy
Sergey Solodukhin
(
University of Tours
)
11:00 - 12:00
Room: Svedberg FD5
15:30
Area, entanglement entropy and supertranslations at null infinty
-
Andrew Strominger
(
Harvard University
)
Area, entanglement entropy and supertranslations at null infinty
Andrew Strominger
(
Harvard University
)
15:30 - 16:30
Room: Svedberg FD5
Wednesday, 10 August 2016
11:00
Infalling observers and small black holes
-
Dan Kabat
(
City University of NY
)
Infalling observers and small black holes
Dan Kabat
(
City University of NY
)
11:00 - 12:00
Room: Svedberg FD5
I discuss a sense in which bulk fields can be partially reconstructed in the interior of an AdS black hole in terms of data in the CFT. This reconstruction enables a classical description of infalling observers, even at late times in a small evaporating black hole. But at late times it does not allow for a complete reconstruction of the interior geometry, which may have implications for information recovery.
15:30
Smooth causal patches for AdS black holes
-
Suvrat Raju
(
Centre for Theoretical Sciences, Tata Institute of Fundamental Research
)
Smooth causal patches for AdS black holes
Suvrat Raju
(
Centre for Theoretical Sciences, Tata Institute of Fundamental Research
)
15:30 - 16:30
Room: Svedberg FD5
We describe an apparent paradox with state-dependent constructions of the black hole interior: excitations with small energy with respect to the boundary Hamiltonian can have strong effects on an infalling observer violating a principle of statistical mechanics that bounds the effect of low-energy sources. This is sometimes called a "Born rule" violation. We describe how this paradox is resolved by causality. As a result of a non-trivial property of position-space AdS correlators, no observer can create such an excitation and also observe its effect. This is an important check of the consistency of state-dependent maps between the black hole interior and boundary operators in AdS/CFT.
Thursday, 11 August 2016
11:00
Newton-Cartan and Carrollian geometry in holography and hydrodynamics
-
Jelle Hartong
(
ULB
)
Newton-Cartan and Carrollian geometry in holography and hydrodynamics
Jelle Hartong
(
ULB
)
11:00 - 12:00
Room: Svedberg FD5
I will give an introduction and overview of Newton-Cartan and Carrollian geometries. These geometries appear as boundary geometries in non-AdS holography, in novel types of gravitational theories such as Horava-Lifshitz gravity and in applications to low energy physics such as e.g. non-relativistic hydrodynamics. In the first part I will introduce the basic ingredients of Newton-Cartan and Carrollian geometries and discuss their appearance in holography. In the second part I will focus on applications to hydrodynamics for systems with dynamical exponent z>1.
15:30
Kerr-Newman black holes in supergravity
-
Finn Larsen
(
University of Michigan
)
Kerr-Newman black holes in supergravity
Finn Larsen
(
University of Michigan
)
15:30 - 16:30
Room: Svedberg FD5
Friday, 12 August 2016
11:00
Interacting giant gravitons from Spin Matrix Theory
-
Troels Harmark
(
Niels Bohr Institute
)
Interacting giant gravitons from Spin Matrix Theory
Troels Harmark
(
Niels Bohr Institute
)
11:00 - 12:00
Room: Svedberg FD5
Using the non-abelian DBI action we find an effective matrix model that describes the dynamics of weakly interacting giant gravitons wrapped on three-spheres in the AdS part of AdS_5 x S^5 at high energies with two angular momenta on the S^5. In parallel we consider the limit of \CN=4 super Yang-Mills theory near a certain unitarity bound where it reduces to the quantum mechanical theory called SU(2) Spin Matrix Theory. We show that the exact same matrix model that describes the giant gravitons on the string theory side also provides the effective description in the strong coupling and large energy limit of the Spin Matrix Theory. Thus, we are able to match non-supersymmetric dynamics of D-branes on AdS_5 x S^5 to a finite-N regime in \CN=4 super Yang-Mills theory near a unitarity bound.
15:30
Coarse grained dynamics and holography
-
Albion Lawrence
(
Brandeis University
)
Coarse grained dynamics and holography
Albion Lawrence
(
Brandeis University
)
15:30 - 16:30
Room: Svedberg FD5
Saturday, 13 August 2016
Sunday, 14 August 2016
Monday, 15 August 2016
11:00
AdS2 holography and non extremal black holes
-
Ioannis Papadimitriou
(
SISSA
)
AdS2 holography and non extremal black holes
Ioannis Papadimitriou
(
SISSA
)
11:00 - 12:00
Room: Svedberg FD5
15:30
Entwinement in discretely gauged theories
-
Ben Craps
(
VUB
)
Entwinement in discretely gauged theories
Ben Craps
(
VUB
)
15:30 - 16:30
Room: Svedberg FD5
The concept of "entwinement" originated in the ongoing program of reconstructing spacetime from quantum entanglement in holographic duality. We develop this notion, which characterizes the amount of entanglement between internal, discretely gauged degrees of freedom, from a quantum field theory point of view.
Tuesday, 16 August 2016
11:00
Microstate geometries and gravitational collapse
-
Bert Vercnocke
(
University of Amsterdam
)
Microstate geometries and gravitational collapse
Bert Vercnocke
(
University of Amsterdam
)
11:00 - 12:00
Room: Svedberg FD5
I will first review recent progress on 'microstate geometries', horizon-less solutions of string theory that play a role in the fuzzball proposal. Then I will discuss how gravitational collapse might end in a microstate geometry rather than in a black hole end state, through quantum tunneling.
15:30
New exact entanglement entropies
-
Stefan Vandoren
(
University of Utrecht
)
New exact entanglement entropies
Stefan Vandoren
(
University of Utrecht
)
15:30 - 16:30
Room: Svedberg FD5
Wednesday, 17 August 2016
Thursday, 18 August 2016
Friday, 19 August 2016
Saturday, 20 August 2016
Sunday, 21 August 2016
Monday, 22 August 2016
11:00
From Planck data to Planck era: Observational tests of Holographic Cosmology
-
Kostas Skenderis
(
University of Southampton
)
From Planck data to Planck era: Observational tests of Holographic Cosmology
Kostas Skenderis
(
University of Southampton
)
11:00 - 12:00
Room: Room FB52
I will present holographic models for the very early Universe, the period usually associated with inflation, and compare the predictions of these models against Planck 2015 data. Within the holographic framework the early Universe is described by a three dimensional QFT. Conventional inflation is included in this framework as strong coupled QFT while qualitatively new models arise when the QFT has weak or intermediate coupling. The weakly coupled models describe a very quantum early Universe and it turns out that these models fit the Planck data remarkably well, providing an alternative to LambdaCDM. Observations can be used to exclude some QFT models, while we also find models satisfying all phenomenological constraints: the data rules out the dual theory being Yang-Mills theory coupled to fermions only, but allows for Yang-Mills theory coupled to non-minimal scalars with quartic interactions.
16:00
(Nordita seminar) Relativistic hydrodynamics as an effective field theory
-
Mukund Rangamani
(Nordita seminar) Relativistic hydrodynamics as an effective field theory
Mukund Rangamani
16:00 - 17:00
Room: Room FB54
Hydrodynamics is a rather old subject, but in the last few years we have seen enormous progress in understanding some of the theoretical underpinnings of the subject. I will explain how the standard axioms of the phenomenological theory can be explicitly solved for allowed forms of transport. The solution reveals some interesting hidden symmetries which we will explain from a microscopic perspective. We shall see that the effective field theory of non-linear dissipative fluids is described in terms of a novel topological sigma model.
17:15
Welcome reception
Welcome reception
17:15 - 19:15
Room: Nordita high energy room
Tuesday, 23 August 2016
11:00
Worldline Holography and the Static Patch
-
Dionysios Anninos
(
IAS
)
Worldline Holography and the Static Patch
Dionysios Anninos
(
IAS
)
11:00 - 12:00
Room: Room FB52
16:00
Emergence and Violation of Locality in Quantum Gravity
-
Ben Freivogel
(
University of Amsterdam
)
Emergence and Violation of Locality in Quantum Gravity
Ben Freivogel
(
University of Amsterdam
)
16:00 - 17:00
Room: Room FB53
I will discuss progress and puzzles in understanding the emergence of bulk locality in the context of simple models of the AdS/CFT correspondence.
Wednesday, 24 August 2016
11:00
Gauge theory description of black hole evaporation
-
Masanori Hanada
(
Kyoto University & Stanford University
)
Gauge theory description of black hole evaporation
Masanori Hanada
(
Kyoto University & Stanford University
)
11:00 - 12:00
Room: Room FB52
We show how hot, evaporating black holes are described by gauge theories. This talk consists of four parts, which are related but can be understood to some extent independently: (1) Precision test of the gauge/gravity duality at finite temperature by lattice simulations (Reference [1,2]), (2) The microscopic description of the evaporation of black holes based on gauge theories (Reference [3,4]), (3) The microscopic description of the 10d Schwarzschild black hole by 4d N=4 SYM (Reference [5]), (4) The emergence of the black hole horizon from gauge theory (Reference [6]). In part (1), I explain the state-of-the-art numerical studies of super Yang-Mills theories, in particular the supercomputer simulations of D0-brane quantum mechanics. This year, the large-N and continuum limits are taken for the first time, and the gauge/gravity duality conjecture at finite temperature has been tested very precisely. Both the leading supergravity part and stringy corrections has been reproduced rather precisely. In part (2), we attack one of the biggest mystery of the gauge/gravity duality -- can gauge theories describe evaporating black holes with the negative specific heat? We point out that the previous analyses missed the process of the emission of D-branes (eigenvalues of matrices), and with a proper treatment of this process, the evaporation and negative specific heat are inevitable consequences in rather generic class of black holes with gauge theory duals. For the case of black zero-brane, we analyze the evaporation process quantitatively by using analytic methods. In part (3), we apply the same idea to 4d N=4 SYM on three-sphere. Then the microscopic description of the small 10d black hole and the Hagedorn behavior can be obtained rather straightforwardly. In part (4), we consider the 'bulk geometry' by looking at gauge theory. More specifically, we study the force acting on D-branes in gauge theory side. We argue that the horizon is only an approximate concept at large-N; it becomes obscure, or 'disappear', at finite-N. We see how this picture is related to the evaporation described in part (3). References: [1] E. Berkowitz, E. Rinaldi, M. Hanada, G. Ishiki, S. Shimasaki and P. Vranas (Monte Carlo String/M-theory Collaboration), ``Supergravity from D0-brane Quantum Mechanics,'' arXiv:1606.04948 [hep-th]. [2] E. Berkowitz, E. Rinaldi, M. Hanada, G. Ishiki, S. Shimasaki and P. Vranas (Monte Carlo String/M-theory Collaboration), ``Precision lattice test of the gauge/gravity duality at large-N,'' arXiv:1606.04951 [hep-lat]. [3] E. Berkowitz, M. Hanada and J. Maltz, ``Chaos in Matrix Models and Black Hole Evaporation,'' arXiv:1602.01473 [hep- th]. [4] E. Berkowitz, M. Hanada and J. Maltz, ``A microscopic description of black hole evaporation via holography,'' arXiv:1603.03055 [hep-th]. [5] M. Hanada, J. Maltz and L. Susskind, in preparation. [6] E. Berkowitz, G. Gur-Ari, M. Hanada, J. Maltz, E. Rinaldi and P. Vranas, in preparation.
16:00
Poking Holes in Hole-ography
-
Sebastian Fischetti
(
Imperial College London
)
Poking Holes in Hole-ography
Sebastian Fischetti
(
Imperial College London
)
16:00 - 17:00
Room: Room FB53
Hole-ography (or alternatively, differential entropy) is a promising tool for reconstructing a three-dimensional holographic bulk from the structure of the entanglement entropy of its CFT dual. However, there are generically regions in the interior of event horizons where the hole- ographic reconstruction must fail, even if one admits so- called "long" geodesics (conjectured to correspond to "entwinement" in the CFT). These regions correspond to the interiors of so-called holographic screens, which are a local generalization of event horizons and which can be interpreted holographically via the Bousso bound. In this talk, I will review the hole-ographic approach and holographic screens, and then prove that hole-ography must fail inside of these screens.
Thursday, 25 August 2016
11:00
Constraints on CFT three point functions
-
Manuela Kulaxizi
(
Trinity College Dublin
)
Constraints on CFT three point functions
Manuela Kulaxizi
(
Trinity College Dublin
)
11:00 - 12:00
Room: Room FB52
We discuss methods to analytically obtain constraints on the OPE coefficients of an arbitrary CFT (in d>3 dimensions). One of them is the positivity of the energy flux; another one involves deep inelastic scattering thought experiments. We derive bounds on the OPE coefficients of various operators using both methods. We discuss under which conditions the constraints derived are equivalent.
14:30
Canonical Heterotic Throats
-
Nick Halmagyi
(
LPTHE
)
Canonical Heterotic Throats
Nick Halmagyi
(
LPTHE
)
14:30 - 15:30
Room: FB53
Note: precise starting time might change
16:00
Weyl anomalies and quantum cosmology
-
Atish Dabholkar
(
ICTP
)
Weyl anomalies and quantum cosmology
Atish Dabholkar
(
ICTP
)
16:00 - 17:00
Room: Room FB53
Friday, 26 August 2016
11:00
Aspects of higher spin black holes
-
Juan Jottar
(
ETH Zurich
)
Aspects of higher spin black holes
Juan Jottar
(
ETH Zurich
)
11:00 - 12:00
Room: Room FB53
We discuss various aspects of three-dimensional higher spin black holes, in the context of the AdS_3/CFT_2 correspondence. In particular, we describe how to exploit the Chern-Simons formulation of higher spin theories in AdS_3 in order to derive properties of 2d CFTs with extended symmetry algebras, in the semiclassical (large central charge) limit. We will mainly focus on 2d CFTs with W- symmetry, and comment on how to derive their thermodynamic and modular transformation properties, entanglement entropy, supersymmetry and BPS bounds, by studying black hole solutions in the dual Chern-Simons theories.
16:00
Generalized global symmetries, dissipative magnetohydrodynamics, and holography
-
Nabil Iqbal
(
University of Amsterdam
)
Generalized global symmetries, dissipative magnetohydrodynamics, and holography
Nabil Iqbal
(
University of Amsterdam
)
16:00 - 17:00
Room: FB53
Just as ordinary global symmetries in quantum field theory are associated with conserved currents that count particle numbers, “generalized” global symmetries are associated with higher-form conserved currents that can be understood as counting higher-dimensional objects such as strings. I will discuss how this idea applies to the long-distance structure of theories of electromagnetism, where a key role is played by a higher-form conserved current that counts the density of magnetic flux lines. I will then use this higher form current to reformulate dissipative magnetohydrodynamics from the point of view of generalized symmetries and effective field theory. I will also discuss the structure of the holographic dual to magnetohydrodynamics, which involves a two-form field propagating in the bulk.
Saturday, 27 August 2016
Sunday, 28 August 2016
Monday, 29 August 2016
11:00
Some geometrical aspects of entanglement in CFT & Holography
-
Erik Tonni
(
SISSA
)
Some geometrical aspects of entanglement in CFT & Holography
Erik Tonni
(
SISSA
)
11:00 - 12:00
Room: Room 132.028
In the first part we discuss the holographic entanglement entropy in AdS4/CFT3 for finite domains with generic shapes. For smooth shapes the constant term can be evaluated by employing a generalisation of the Willmore functional for two dimensional surfaces. Explicit examples are given for asymptotically AdS4 black holes, domain wall geometries and time dependent backgrounds. The second part is focused on the entanglement negativity in CFT. In 2+1 dimensions we present some numerical results for two adjacent regions in a two dimensional harmonic lattice, discussing the area law behaviour and the corner contributions. In 1+1 dimensions and for two disjoint intervals in the Ising and the Dirac fermion models, we show that the contribution of a given spin structure to the moments of the partial transpose is obtained as the scaling limit of a specific lattice term. This analysis provides also the moments of the partial transpose for the free fermion.
Tuesday, 30 August 2016
11:00
Entanglement, holography and causal diamonds
-
Michal Heller
(
Perimeter Institute for Theoretical Physics
)
Entanglement, holography and causal diamonds
Michal Heller
(
Perimeter Institute for Theoretical Physics
)
11:00 - 12:00
Room: Room 132.028
The talk will discuss novel geometric structures introduced in 1606.03307 and will focus on their applications to the entanglement entropy in CFTs and the Ryu-Takayanagi prescription.
Wednesday, 31 August 2016
11:00
Entanglement propagation in 2d CFTs
-
Pawel Caputa
(
Nordita
)
Entanglement propagation in 2d CFTs
Pawel Caputa
(
Nordita
)
11:00 - 12:00
Room: Room 132.028
I will discuss the time evolution of entanglement measures and out-of-time order correlators in excited states of 2d CFTs. In particular, I will stress the differences between holographic and non-holographic models from the perspective of the entanglement dynamics and scrambling.
Thursday, 1 September 2016
Friday, 2 September 2016