6 citations · 12 across the 15 of their papers we have counts for
17 papers
Quantization through dissipation: impurity states and the optical quantum Hall effect
Zhenisbek Tagay, Ahmed Abouelkomsan, Yugo Onishi +4
The integer quantum Hall effect remains the most paradigmatic and remarkable example of exact quantization in condensed matter physics. Its Hall conductivity is fixed to $…
Electron Temperature and Electron-Electron Scattering Length in GaAs/AlGaAs Using Mesoscopic Multiparallel Aperture Geometries
Arati Thapa, Rishav Khatiwada, Prakash Sharma +5
Quantifying electron temperatures and electron-electron scattering lengths is essential for understanding electron transport regimes in two-dimensional systems. To that end, this w…
Observation of even-denominator fractional quantum Hall states at and 5/4 in the lowest Landau level
Siddharth Kumar Singh, Chengyu Wang, Adbhut Gupta +3
Two-dimensional electron systems (2DESs) confined to wide GaAs quantum wells provide a unique platform to study exotic fractional quantum Hall states (FQHSs) because the 2DES has a…
Cascade of fractional quantum Hall states in 2D system
Zhimou Chen, Jiaojie Yan, Yuxuan Zhu +11
The observation of the fractional quantum Hall (FQH) effect in 2D electron gases ushered in investigations of topological phases driven by strong electron correlations. Their remar…
Temporal hopping dynamics in exciton-polariton condensation
Elena Rozas, Wojciech Bukalski, Yannik Brune +9
Polariton condensates provide a versatile platform for exploring non-equilibrium phase transitions and collective phenomena in open quantum systems. Near the condensation threshold…
Observation of Superfluidity and Meissner Effect of Composite Bosons in GaAs Quantum Hall System
Yuanze Li, Renfei Wang, Jiahao Chen +7
The quantum Hall effect (QHE) is theoretically understood as a superfluid condensate of composite bosons (CBs) -- bound states of electrons and magnetic flux quanta. While dissipat…
Observation of e/4 charge at in GaAs
Tomer Alkalai, Emily Hajigeorgiou, Adbhut Gupta +9
Even-denominator fractional quantum Hall states (FQHSs) fall outside the standard Laughlin's and Jain's odd-denominator hierarchy. In this work, we study the FQHS in the lo…
Laughlin pumping assisted by surface acoustic waves
Renfei Wang, Xiao Liu, Adbhut Gupta +8
The quantum Hall effect is a fascinating electrical transport phenomenon signified by precise quantization of Hall conductivity and vanishing longitudinal conductiv…
Controlled Switching of Bose-Einstein Condensation in a Mixture of Two Species of Polaritons
Hassan Alnatah, Shuang Liang, Qiaochu Wan +5
We report temperature-dependent switching between lower and upper polariton condensation in a GaAs/AlGaAs microcavity when both of these species have comparable populations in a mi…
Observation of a Stripe/nematic Phase of Composite Fermions
Chengyu Wang, Siddharth K. Singh, Chia-Tse Tai +4
Electronic stripe/nematic phases are fascinating strongly-correlated states characterized by spontaneous rotational symmetry breaking. In the quantum Hall regime, such phases typic…
Fractional quantum Hall state at with energy gap up to 6 K, and possible transition from one- to two-component state
Siddharth Kumar Singh, Chengyu Wang, Adbhut Gupta +3
The fractional quantum Hall state (FQHS) observed in the lowest Landau level at filling factor in wide quantum wells has been enigmatic for decades because the two-dimensio…
Even-denominator fractional quantum Hall states with spontaneously broken rotational symmetry
Chengyu Wang, A. Gupta, S. K. Singh +5
The interplay between the fractional quantum Hall effect and nematicity is intriguing as it links emerging topological order and spontaneous symmetry breaking. Anisotropic fraction…
Mirror-mediated long-range coupling and robust phase locking of spatially separated exciton-polariton condensates
Shuang Liang, Hassan Alnatah, Qi Yao +7
Lattice arrays are valuable simulators for complex mathematical problems, but physical systems typically allow only short-range coupling. We demonstrate a method for independently…
Design and Fabrication of Robust Hybrid Photonic Crystal Cavities
Alex Abulnaga, Sean Karg, Sounak Mukherjee +4
Heterogeneously integrated hybrid photonic crystal cavities enable strong light-matter interactions with solid-state, optically addressable quantum memories. A key challenge to rea…
Anomalous acousto-current within the quantum Hall plateaus
Renfei Wang, Xiao Liu, Mengmeng Wu +7
We systematically study the acousto-current of two-dimensional electron systems in the integer and fractional quantum Hall regimes using surface acoustic waves. We are able to sepa…
Ultraclean two-dimensional hole systems with mobilities exceeding 10 cm/Vs
Adbhut Gupta, C. Wang, S. K. Singh +4
Owing to their large effective mass, strong and tunable spin-orbit coupling, and complex band-structure, two-dimensional hole systems (2DHSs) in GaAs quantum wells provide rich pla…
Metastable Charge Distribution Between Degenerate Landau Levels
Wenlu Lin, Xing Fan, Lili Zhao +6
We study two dimensional electron systems confined in wide quantum wells whose subband separation is comparable with the Zeeman energy. Two N = 0 Landau levels from different subba…