The 25th Nordic Network Meeting on "Strings, Fields and Branes"

Europe/Stockholm
<a href="http://www.nordita.org/" "target=_blank">Nordita</a>

<a href="http://www.nordita.org/" "target=_blank">Nordita</a>

Alexander Wijns (Nordita) , Diego Chialva (Nordita) , Lárus Thorlacius (Nordita) , Paolo Di Vecchia (Nordita) , Troels Harmark (Nordita) , Valentina Giangreco Puletti (Nordita)
Description

Venue

Nordita, Stockholm, Sweden

General

The 25th Nordic Network Meeting on ''Strings, Fields and Branes'' will be held March 25-27, 2010 and hosted by Nordita, which is located near the AlbaNova University Center in Stockholm. The meeting will start on Thursday the 25th at around 13.00 and end on Saturday the 27th at around 13.00. The lectures and talks will actually take place at the nearby KTH campus, more precisely at Lindstedtsvägen 3, lecture room E2. On this map Nordita is located in the upper-left corner, while the lecture room at the KTH campus can be found in the lower-right corner.

Program

The program will consist of three lecture series by invited speakers, and short talks by students and young researchers who wish to contribute. The three lecture series will be held by:

  • Nadav Drukker: On the relation between 4d N=2 theories and 2d Liouville CFT: Partition functions and observables
  • Radu Tatar: F theory phenomenology
  • David Tong: Applications of AdS/CFT

Registration

The deadline for registration is March 12, 2010. This is also the deadline for submission of talks. To register, follow the "Registration Form" link on the left.

Accommodation and Financial Support

Accommodation will be available free of charge only to PhD students. Other participants are requested to arrange for their own accommodation. We have however pre-booked a limited number of rooms in conveniently located hotels. Note that to obtain one of these pre-booked rooms, reservations have to be made before March 10! Follow the "Accommodation" link on the left for further information.

Travel expenses can unfortunately not be covered by Nordita.

Traveling within Stockholm

Both the bus and subway (Tunnelbana or T-bana) network in Stockholm are operated by SL. We recommend buying an eight-trip card (180 SEK), called Förköpsremsa, instead of just single-trip tickets (30 SEK per trip). It can be bought either at the desk at the entrance of the subway or at every Pressbyrån shop, which you usually also find around or in subway stations.

The closest subway station to both Nordita and the KTH campus is Tekniska Högskolan on the red line towards Mörby centrum when coming from the city center. More information on how to get to Nordita can be found here.

Social Events

On Friday the 26th there will be a social dinner at Albanova's restaurant "Entré" at 19.00.

Organization

Local organizing committee: Diego Chialva, Paolo Di Vecchia, Valentina Giangreco Puletti, Troels Harmark, Lárus Thorlacius, Alexander Wijns
Secretary: Anne Jifält
Funding: Nordita

    • 12:30 PM
      Registration Lindstedtsvägen 3, room E2

      Lindstedtsvägen 3, room E2

      <a href="http://www.nordita.org/" "target=_blank">Nordita</a>

    • 1
      On the relation between 4d N=2 theories and 2d Liouville CFT: Partition functions and observables Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Nadav Drukker
    • 2
      Uniquess of Black Hole Space-Times Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      The talk will be based on the preprint: http://arxiv.org/abs/0911.4654
      Speaker: Jay Armas
    • 3
      Canonical quantization of non-linear sigma models Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      I will introduce the "Chiral de Rham complex" and discuss its interpretation as the formal Hamiltonian quantization of the supersymmetric non-linear sigma model.
      Speaker: Johan Källén
    • 2:40 PM
      break
    • 4
      Chiral de Rham complex on special holonomy manifolds Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Joel Ekstrand
    • 5
      New results in target space geometry of non-linear sigma models Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Recent work on N=(2,2) non-linear sigma models with only semi-chiral fields will be discussed. Imposing additional N=(4,4) supersymmetry gives constraints on the target space geometry which we analyze. This is done both in the special case of linear transformations and 4-dimensional target space, as well as in the general case.
      Speaker: Malin Göteman
    • 3:40 PM
      break
    • 6
      F-theory phenomenology Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Radu Tatar
    • 5:00 PM
      break
    • 7
      Applications of AdS/CFT Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: David Tong
    • 8
      F-theory phenomenology Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Radu Tatar
    • 9
      On the relation between 4d N=2 theories and 2d Liouville CFT: Partition functions and observables Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Nadav Drukker
    • 11:30 AM
      break
    • 10
      Perturbative computations in gauge theories with gravity duals Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      I will review the recent progress to test AdS/CFT and integrability by explicit Feynman diagram computations of the spectra
      Speaker: Christoph Sieg
    • 11
      On thermodynamics of N=6 superconformal Chern-Simons theory Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Recently, great progress has been made on understanding the field theory side of the AdS(4)/CFT(3) duality. The so-called ABJM theory, which is an N=6 superconformal Chern-Simons theory, has been conjectured to describe the world-volume theory on an arbitrary number of M2-branes. We discuss thermal properties of ABJM theory, by computing quantum corrections to the free energy. We find that in weakly coupled ABJM theory on R(2) × S(1), the leading correction is non-analytic in the ’t Hooft coupling. We derive a precise formula for the correction. The free energy can be expressed in terms of the scalar thermal mass, which is generated by screening effects. We show that this mass vanishes to 1-loop order. We then go on to 2-loop order where we find a finite and positive mass squared. Our results are consistent with the free energy being a monotonic function in the coupling constant which interpolates smoothly to the intriguing N^(3/2) behaviour at strong coupling, where the entropy is strongly suppressed.
      Speaker: Mikael Smedbäck
    • 12
      Beyond the planar limit Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Pawel Caputa
    • 1:00 PM
      Lunch
    • 13
      Applications of AdS/CFT Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: David Tong
    • 3:30 PM
      break
    • 14
      De Sitter in N=4 compactifications Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Giuseppe Dibitetto
    • 15
      General Semi-Direct Gauge Mediation Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      From 0912.0743: We give a general formulation of semi-direct gauge mediation of supersymmetry breaking where the messengers interact with the hidden sector only through a weakly gauged group. Using this general formulation, we provide an explicit proof that the MSSM gaugino masses are vanishing to leading order in the gauge couplings. On the other hand, the MSSM sfermion masses have, generically, a non-vanishing leading contribution. We discuss how such a mechanism can successfully be combined with other mediation schemes which give tachyonic sfermions, such as sequestered anomaly mediation and some direct gauge mediation models.
      Speaker: Gabriele Ferretti
    • 4:40 PM
      break
    • 16
      F-theory phenomenology Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Radu Tatar
    • 17
      Applications of AdS/CFT Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: David Tong
    • 18
      On the relation between 4d N=2 theories and 2d Liouville CFT: Partition functions and observables Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Nadav Drukker
    • 11:30 AM
      break
    • 19
      Bibranes: Target space geometry for worldsheet defects Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Christoph Schweigert
    • 20
      The Perfect Atom: Bound States of Super-QED Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      We derive the spectrum of supersymmetric hydrogen-like atoms. A difference between these perfect atoms and non-supersymmetric ones is the absence of hyperfine structure. This is in accordance with strong coupling results using AdS/CFT
      Speaker: Thomas Klose
    • 21
      A supersymmetric action for D=11 supergravity Lindstedtsvägen 3, room E2 (KTH Campus)

      Lindstedtsvägen 3, room E2

      KTH Campus

      Speaker: Martin Cederwall