#### Practical information

**Date and time:**Mondays, 11:00 hrs**Location:**theory lounge (SP C4.278) and ZOOM**Online platform:**zoom link**Mailing list:**subscription link

#### Timetable, also available via the CMT calendar

**23.01.2023:**Rebecca**30.01.2023:**JS**06.02.2023:**Wouter**13.02.2023:**Jasper**20.02.2023:**Guest: Ilya Vilkoviskiy (Geneva)**27.02.2023:**Irene**06.03.2023:**NO J.C.**13.03.2023:**Guest: Tim Harris (munich)**20.03.2023:**Guest: Denis Kurlov (Basel)**27.03.2023:**Alberto**03.04.2023:**Liam**10.04.2023:**No JC - Easter**17.04.2023:**T.B.D.**24.04.2023:**Suvendu**01.05.2023:**No JC - student vacation week**08.05.2023:**Juan-Diego**15.05.2023:**Guest: Jeremy (Unknown as of yet, guest of Arghavan)**22.05.2023:**Lizzie**29.05.2023:**No JC - Whit Monday**05.06.2023:**Yining**12.06.2023:**T.B.D.**19.06.2023:**Lotte**26.06.2023:**Aritro

#### Topics covered in the academic year 2022 - 2023

- Discovery of a Cooper-pair density wave state in a transition-metal dichalcogenide (reference 1)
- Theory of photon condensation in an arbitrary gauge condensed matter cavity model (reference 1)
- Replica approach to the generalized Rosenzweig-Porter model (reference 1)
- Dynamics of scrambling of information in systems with nonlocal interactions (reference 1)
- Unitary matrix integrals, spectral form factors, and long range random walk models (reference 1, reference 2)
- Conformal Quasicrystals and Holography (reference 1)
- Spin-Holstein Models in Trapped-Ion Systems (reference 1)
- Lattice-driven chiral charge density wave state in 1T-TaS2 (reference 1)
- Is there evidence for exponential quantum advantage in quantum chemistry? (reference 1)

#### Topics covered in the academic year 2021 - 2022

- Hyper-optimized compressed contraction of tensor networks with arbitrary geometry (reference 1)
- Overcoming the entanglement barrier in quantum many-body dynamics via space-time duality (reference 1, reference 2)
- Polariton condensates for classical and quantum computing (reference 1, reference 2)
- Quantum many-body systems in thermal equilibrium (reference 1, reference 2)
- Spin excitation spectra of the spin-1/2 triangular Heisenberg antiferromagnets from tensor networks (reference 1)
- Non-Hermitian photonic structures (reference 1, reference 2, reference 3)
- Thouless quantum pumps (reference)
- Calculating Hamiltonian dynamics of 1D (infinite) lattices using matrix product states (reference 1, reference 2, reference 3, reference 4, reference 5)
- The alternating sign matrix (reference)
- The alternating sign matrix (reference)
- Dissipation-assisted operator evolution method for capturing hydrodynamic transport (reference)
- Semiclassical quantum chaos (reference 1, reference 2)
- Non-orientable order and non-Abelian response in frustrated metamaterials (reference)
- The connection between random matrix theory and prime numbers (reference)
- Many-Body Localization (reference)
- A brief history of time crystals (reference)
- Simulating chiral spin liquids with projected entangled-pair states (reference)
- Neutron Scattering on Spin Ice systems (reference)
- The Riemannian geometry of quantum mechanics
- Adhesion of cell membranes (reference 1, reference 2)
- Lieb-Robinson bounds for long-range interacting systems (reference)
- Dynamical quantum phase transitions (reference)
- Objective collapse models (reference)
- On the ac magnetic susceptibility of a room temperature superconductor (reference)
- Neural networks and its application to the variational optimisation of many-body wavefunctions (reference)
- Elementary band representations for the single-particle Green's function of interacting topological insulators (reference)
- The physics behind ‘smart glass’ (reference 1, reference 2)
- The Kernel Polynomial Method (reference)

#### Topics covered in the academic year 2020 - 2021

- Topological insulators with time-reversal symmetry (reference 1, reference 2)
- Average entropy of a subsystem (reference)
- Renormalization group approach to interacting fermions (reference)
- Observation of anyons (reference 1, reference 2, reference 3)
- Superintegrability from self-duality (reference )
- Potential observation of room-temperature superconductivity (reference 1, reference 2)
- Magnetic monopoles in spin ice (reference)
- Unparticles and how they might be related to unconventional superconductivity (reference 1, reference 2, reference 3)
- The large deviation principle (reference 1, reference 2)
- Quantum eigenstates from classical Gibbs distributions (reference)
- Classification of non-hermitian topological insulators
- Characterization of solvable spin models via graph invariants (reference)
- Rydberg atoms and Fibonacci anyons (reference)
- AI Feynman: A physics-inspired method for symbolic regression (reference)
- Wigner crystals (reference)
- Totally AntiSymmetric Exclusion Processes (reference)
- Free (Para-)fermions in Disguise (reference 1, reference 2)
- Extending Solid-State Calculations to Ultra-Long-Range Length Scales (reference)
- Cellular automata (reference)
- 2D Sigma models (reference)
- On the QMA-completeness of the local Hamiltonian problem (reference 1, reference 2)
- Generalized Hydrodynamics (reference 1, reference 2)
- Quenching across topological phases: Dynamical phase transitions
- Entangling power and quantum circuit complexity (reference)
- Replica symmetry and its breaking in disordered spin systems (reference)
- The approximate simulation of quantum circuits using Matrix Product States (reference)

#### Topics covered in the academic year 2019 - 2020

- Acoustic black holes and Hawking radiation in the lab (reference 1, reference 2, reference 3)
- Resonant inelastic X-ray scattering (reference)
- Homotopy and defects (reference)
- The Kane-Fisher problem (reference)
- Random unitary circuits (reference)
- Quantum supremacy (reference)
- Resurgent transseries in quantum physics (reference)
- Neural networks in many-body quantum physics (reference)
- Bulk-boundary correspondence in non-Hermitian systems (reference)
- The pseudopotential approximation (reference)
- Fisher and Yang-Lee zeros (reference)
- Exploring topological phases with quantum walks (reference)
- Ferroelectrics (reference)
- Geometry of quantum states
- Dimer packing (reference)
- Computational complexity of the Rydberg blockade in 2d (reference)
- The Jahn-Teller effect and magnetism: transition metal compounds (reference)
- Eigenstate thermalization hypothesis (reference)
- Dynamical scar states in driven fracton systems (reference)
- Isospectrality (reference)
- The six-vertex model (reference)
- Anderson localization (reference)
- Weyl semimetals (reference)
- Hilbert space fragmentation (reference)
- Conformal field theory (reference)

#### Suggested topics

Topics of current interest are listed monthly at condmatjclub.org. Suggestions for classical topics (copied from Neil's website) are listed below.

- Luttinger's Theorem (reference)
- Random singlet phases (reference)
- The X-ray edge problem and orthogonality catastrophe (reference)
- The Coulomb gap (reference)
- Rokshar-Kivelson quantum dimer models (reference)
- Weak localisation and conductance fluctuations (reference)
- Lieb-Robinson bounds (reference)
- Coulomb phase in frustrated systems (reference)
- Large deviations (reference)
- Griffith's phases (reference)
- Replica symmetry and it's breaking (reference)
- Lifshitz tails: bound states in random potentials (reference)
- Anderson-Higgs mechanism in superconductors (reference)
- Chalker-Coddington Model for integer QHE (reference)