Bimetric theory of fractional quantum hall states

A Gromov, DT Son - Physical Review X, 2017 - APS
We present a bimetric low-energy effective theory of fractional quantum Hall (FQH) states
that describes the topological properties and a gapped collective excitation, known as the …

String field theory

H Erbin - Lecture Notes in Physics, 2021 - Springer
This book grew up from lectures delivered within the Elite Master Program “Theoretical and
Mathematical Physics” from the Ludwig-Maximilians-Universität during the winter semesters …

Geometry of quantum Hall states: Gravitational anomaly and transport coefficients

T Can, M Laskin, PB Wiegmann - Annals of Physics, 2015 - Elsevier
We show that universal transport coefficients of the fractional quantum Hall effect (FQHE)
can be understood as a response to variations of spatial geometry. Some transport …

Boundary effective action for quantum Hall states

A Gromov, K Jensen, AG Abanov - Physical review letters, 2016 - APS
We consider quantum Hall states on a space with boundary, focusing on the aspects of the
edge physics which are completely determined by the symmetries of the problem. There are …

Electromagnetic and gravitational responses of photonic Landau levels

N Schine, M Chalupnik, T Can, A Gromov, J Simon - Nature, 2019 - nature.com
Topology has recently become a focus in condensed matter physics, arising in the context of
the quantum Hall effect and topological insulators. In both of these cases, the topology of the …

Anisotropic quantum hall droplets

B Oblak, B Lapierre, P Moosavi, JM Stéphan… - Physical Review X, 2024 - APS
We study two-dimensional (2D) droplets of noninteracting electrons in a strong magnetic
field, placed in a confining potential with arbitrary shape. Using semiclassical methods …

Microscopic Model for Fractional Quantum Hall Nematics

S Pu, AC Balram, J Taylor, E Fradkin, Z Papić - Physical Review Letters, 2024 - APS
Geometric fluctuations of the density mode in a fractional quantum Hall (FQH) state can give
rise to a nematic FQH phase, a topological state with a spontaneously broken rotational …

Geometric adiabatic transport in quantum Hall states

S Klevtsov, P Wiegmann - Physical review letters, 2015 - APS
We argue that in addition to the Hall conductance and the nondissipative component of the
viscous tensor, there exists a third independent transport coefficient, which is precisely …

Investigating anisotropic quantum hall states with bimetric geometry

A Gromov, SD Geraedts, B Bradlyn - Physical review letters, 2017 - APS
We construct a low energy effective theory of anisotropic fractional quantum Hall (FQH)
states. We develop a formalism similar to that used in the bimetric approach to massive …

Quench dynamics of collective modes in fractional quantum hall bilayers

Z Liu, AC Balram, Z Papić, A Gromov - Physical Review Letters, 2021 - APS
We introduce different types of quenches to probe the nonequilibrium dynamics and multiple
collective modes of bilayer fractional quantum Hall states. We show that applying an electric …