Quantum many-body scars in a Landau level on a thin torus

S Moudgalya, BA Bernevig, N Regnault - Physical Review B, 2020 - APS
We study a kinetically constrained pair-hopping model that arises within a Landau level in
the quantum Hall effect. At filling ν= 1/3, the model exactly maps onto the so-called “PXP …

Very-high-energy collective states of partons in fractional quantum hall liquids

AC Balram, Z Liu, A Gromov, Z Papić - Physical Review X, 2022 - APS
The low-energy physics of fractional quantum Hall (FQH) states—a paradigm of strongly
correlated topological phases of matter—to a large extent is captured by weakly interacting …

Probing geometric excitations of fractional quantum hall states on quantum computers

A Kirmani, K Bull, CY Hou, V Saravanan, SM Saeed… - Physical Review Letters, 2022 - APS
Intermediate-scale quantum technologies provide new opportunities for scientific discovery,
yet they also pose the challenge of identifying suitable problems that can take advantage of …

Chiral gravitons in fractional quantum hall liquids

SF Liou, FDM Haldane, K Yang, EH Rezayi - Physical review letters, 2019 - APS
We elucidate the nature of neutral collective excitations of fractional quantum Hall liquids in
the long-wavelength limit. We demonstrate that they are chiral gravitons carrying angular …

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 …

Probing the spin structure of the fractional quantum Hall magnetoroton with polarized Raman scattering

DX Nguyen, DT Son - Physical Review Research, 2021 - APS
Starting from the Luttinger model for the band structure of GaAs, we derive an effective
theory that describes the coupling of the fractional quantum Hall (FQH) system with photons …

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 …

Higher-spin gauge theories in three spacetime dimensions

A Campoleoni, S Fredenhagen - Introductory Lectures on Higher-Spin …, 2024 - Springer
These lecture notes provide an introduction to higher-spin gauge theories in three
spacetime dimensions, with a focus on their asymptotic symmetries, their holographic …

Neutral excitations of quantum Hall states: A density matrix renormalization group study

P Kumar, FDM Haldane - Physical Review B, 2022 - APS
We use the dynamical structure factors of the quantum Hall states at ν= 1/3 and 1/2 in the
lowest Landau level to study their excitation spectrum. Using the density matrix …

Quasinormal modes and the Hawking-Unruh effect in quantum Hall systems: lessons from black hole phenomena

SS Hegde, V Subramanyan, B Bradlyn… - Physical review …, 2019 - APS
In this work, we propose the quantum Hall system as a platform for exploring black hole
phenomena. By exhibiting deep rooted commonalities between the lowest Landau level and …