In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
Disordered Weyl semimetal: a global phase diagram and chiral superuniversality
112:028 (Nordita South)
Weyl semimetal (WSM), besides manifesting chiral anomaly and Fermi arc surface states, exhibits a quantum-phase transition into a diffusive metallic phase at strong disorder. The existence of this phase transition has been established in the case of a most common disorder represented by charge impurities. However, other types of disorder are also inevitably present in the experimental samples, such as random asymmetric shifts in the chemical potential between the Weyl cones, giving rise to an axial potential disorder. Motivated by this physical situation, I will consider a minimal lattice model for a WSM and study generic phase diagram in the presence of eight possible types of disorder. I will show that emergent chiral symmetry plays a fundamental role in determining universality classes of the disorder-driven transitions in a WSM. Chiral-symmetric disorders exhibit superuniversality – chiral superuniversality – the correlation-length exponent (v) and the dynamical critical exponent (z) are independent of the type of disorder as long as the chiral symmetry is preserved . These are equal to z=3/2 and v=1 to the one-loop in the expansion either about lower critical dimension or about the critical disorder distribution. Our numerical results for the average density of states strongly support emergent chiral superuniversality. On the other hand, chiral-symmetry breaking disorders lead to the quantum-critical lines where the critical exponents depend on the location at the line. To establish a global phase diagram of a WSM, I will also discuss WSM-insulator transition and in particular effects of disorder on the quantum-critical anisotropic semimetal separating WSM and insulator. Finally, I will show how various types of disorder leave an imprint in the scaling of some numerically and experimentally relevant observables, such as optical conductivity .
 B. Roy, R.-J. Slager, and V. Juricic, arXiv: 1610.08973.
 B. Roy, V. Juricic, and S. Das Sarma, Scientific Reports 6, 32446 (2016).