Title: Thermal Conductance of the nu=5/2 Fractional Quantum Hall State Abstract: Recent tour-de-force experiments (Banerjee, Heiblum, et al,Nature 2018) have measured the thermal conductance of the nu=5/2 edge ina GaAs electron gas and found it to be quantized as approximately K=5/2(in appropriate dimensionless units). This result is unexpected, asprior numerical work predicts that the nu=5/2 state should be theAnti-Pfaffian phase of matter, which would give K=3/2, or the possiblythe Moore-Read Pfaffian which would give K=7/2. I will discuss andevaluate several possible explanations of the experimental result. Talk – Video Talk – Slides
Leave a Comment
Last Updated: 23rd November 2020 by Denjoe O'Connor
Ville Vaskonen (King’s College London)
Title: Primordial Black Holes in Light of LIGO/Virgo Observations Abstract: Assuming that a fraction of dark matter is in primordial blackholes (PBHs), a population of PBH binaries is formed before matter-radiationequality from large Poisson fluctuations in their spatial distribution…. Read More
Leave a Comment
Last Updated: 23rd November 2020 by Denjoe O'Connor
Johanna Erdmenger (Universität Würzburg)
Johanna Erdmenger
Time: Wednesday 21 October 2020, 2:30pm
Leave a Comment
Last Updated: 21st October 2020 by Denjoe O'Connor
Joseph Conlon (University of Oxford)
Title: Moduli Stabilisation and the Holographic Swampland Abstract: Moduli stabilisation is an important and necessary step in connecting string vacua to observable physics. This generally starts with AdS solutions, which subsequent steps then uplift to de Sitter space…. Read More
Leave a Comment
Last Updated: 21st October 2020 by George Rogers
Zhengwei Liu (Tsinghua University, Beijing)
Title: Topological Complexity for Quantum Information Abstract: The distinction between “quantum” and “classical” is a main theme in quantum information. Whether a quantum circuit can be classically simulated in polynomial time, and in general, whether the partition function of a lattice model… Read More
Leave a Comment
Last Updated: 8th October 2020 by George Rogers
Michal P. Heller (Albert Einstein Institute, Hannover)
Title: Complexity and Quantum Field Theory Abstract: Viewing fundamental interactions as quantum-many body systems has recently led to important breakthroughs in our understanding of quantum gravity and quantum field theory. In the present talk I will discuss a… Read More
Leave a Comment
Posted: 1st October 2020 by George Rogers
Entanglement Entropy from Spacetime Correlations
Speaker: Yasaman Yazdi (Imperial College, London)
Time: Wednesday, 7 October 2020, 2:30pm
Leave a Comment
Last Updated: 21st October 2020 by George Rogers
Yasaman Yazdi (Imperial College, London)
Title: Entanglement Entropy from Spacetime Correlations Abstract: Entanglement entropy of quantum fields is a topic of growing importance in several fields such as quantum gravity, condensed matter physics, and quantum information. This entropy of entanglement is conventionally computed, using a number of… Read More
Leave a Comment
Last Updated: 1st October 2020 by George Rogers
James Drummond (University of Southampton)
Title: Tropical Geometry, Cluster Algebras and Scattering Amplitudes Abstract: Recently there are hints that there should be an underlying geometricalframework for describing scattering amplitudes in N=4 super Yang-Millstheory. Cluster algebras encode many interesting physical statements aboutthe nature of singularities of these amplitudes and their relation to eachother. We find the notion of tropical geometry allows one to obtain finitesets of singularities even when the cluster algebras become infinite andmoreover leads to a natural definition of algebraic singularities of exactlythe type seen in recent explicit calculations. Talk – Video Talk – Slides
Leave a Comment
Last Updated: 30th September 2020 by George Rogers
Steve Simon (University of Oxford)
Title: Thermal Conductance of the nu=5/2 Fractional Quantum Hall State Abstract: Recent tour-de-force experiments (Banerjee, Heiblum, et al,Nature 2018) have measured the thermal conductance of the nu=5/2 edge ina GaAs electron gas and found it to be quantized as approximately K=5/2(in appropriate dimensionless units). This result is unexpected, asprior numerical work predicts that the nu=5/2 state should be theAnti-Pfaffian phase of matter, which would give K=3/2, or the possiblythe Moore-Read Pfaffian which would give K=7/2. I will discuss andevaluate several possible explanations of the experimental result. Talk – Video Talk – Slides
Leave a Comment
Last Updated: 17th November 2020 by George Rogers
Sergei Gukov (Caltech)
Title: From Ramanujan to Rokhlin, via Quantum States Abstract: The goal of the talk, intended for a broader audience, will be tointroduce a class of functions that originate from physics, answer aquestion in topology, can be computed via methods more common in the theoryof dynamical systems, and in the end turn out to enjoy beautiful modularproperties of the type first observed by Ramanujan. Talk – Video Talk – Slides
Recent Posts
International physics conference, hosted by DIAS, seeks to address gender equality
DIAS Astrophotography competition goes mobile for 2024
Irish scientists are part of groundbreaking discovery with James Webb Space Telescope
Dr Pauline Gagnon (formerly of CERN) to deliver two talks at DIAS
DIAS Professor announced as next President of the European Southern Observatory’s Council
Language switcher