302 citations · 631 across the 17 of their papers we have counts for
17 papers
20 Second Parity Lifetime in an InAs--Pb Tetron Device
Morteza Aghaee, Zulfi Alam, Mariusz Andrzejczuk +162
A central promise of topological quantum computing is that increasing the excitation gap improves device performance significantly. Here, we experimentally validate this principle…
Shubnikov-de Haas Characterization of Superconductor-Semiconductor Heterostructures
A. M. Zimmerman, Saeed Fallahi, Sergei Gronin +13
Hybrid superconductor-semiconductor nanostructures are a central component for research spanning condensed matter physics and quantum information processing. Continued progress rel…
Observation of Photoinduced Terahertz Gain in GaAs Quantum Wells: Evidence for Radiative Two-Exciton-to-Biexciton Scattering
X. Li, K. Yoshioka, Q. Zhang +9
We have observed photoinduced negative optical conductivity, or gain, in the terahertz frequency range in a GaAs multiple-quantum-well structure in a strong perpendicular magnetic…
Anomalous Nematic States in High Half-Filled Landau Levels
X. Fu, Q. Shi, M. A. Zudov +6
It is well established that the ground states of a two-dimensional electron gas with half-filled high () Landau levels are compressible charge-ordered states, known as qua…
Gate-Sensing Charge Pockets in the Semiconductor Qubit Environment
X. G. Croot, S. J. Pauka, H. Lu +6
We report the use of dispersive gate sensing (DGS) as a means of probing the charge environment of heterostructure-based qubit devices. The DGS technique, which detects small shift…
Apparent temperature-induced reorientation of quantum Hall stripes
Q. Shi, M. A. Zudov, B. Friess +4
Our magnetotransport measurements of quantum Hall stripes in a high-quality GaAs quantum well in a slightly tilted magnetic field reveal that the orientation of stripes can be chan…
Electron-Hole Asymmetric Chiral Breakdown of Reentrant Quantum Hall States
Alexander V. Rossokhaty, Yuval Baum, Joshua A. Folk +3
Reentrant integer quantum Hall (RIQH) states are believed to be correlated electron solid phases, though their microscopic description remains unclear. As bias current increases, l…
Spatially resolved breakdown in reentrant quantum Hall states
A. V. Rossokhaty, J. A. Folk, Y. Baum +3
Reentrant integer quantum Hall (RIQH) states are believed to be correlated electron solid phases, though their microscopic description remains unclear. As bias current increases, l…
On-Chip Microwave Quantum Hall Circulator
A. C. Mahoney, J. I. Colless, S. J. Pauka +6
Circulators are non-reciprocal circuit elements integral to technologies including radar systems, microwave communication transceivers, and the readout of quantum information devic…
Gapped Excitations of unconventional FQHE states in the Second Landau Level
U. Wurstbauer, A. L. Levy, A. Pinczuk +5
We report the observation of low-lying collective charge and spin excitations in the second Landau level at ν = 2 + 1/3 and also for the very fragile states at ν = 2 + 2/5, 2 + 3/8…
Multiphoton processes at cyclotron resonance subharmonics in a 2D electron system under DC and microwave excitation
S. Chakraborty, A. T. Hatke, L. W. Engel +2
We investigate a two-dimensional electron system (2DES) under microwave illumination at cyclotron resonance subharmonics. The 2DES carries sufficient direct current, , that the…
Cryogenic Control Architecture for Large-Scale Quantum Computing
J. M. Hornibrook, J. I. Colless, I. D. Conway Lamb +8
Solid-state qubits have recently advanced to the level that enables them, in-principle, to be scaled-up into fault-tolerant quantum computers. As these physical qubits continue to…
Full control of quadruple quantum dot circuit charge states in the single electron regime
M. R. Delbecq, T. Nakajima, T. Otsuka +4
We report the realization of an array of four tunnel coupled quantum dots in the single electron regime, which is the first required step toward a scalable solid state spin qubit a…
Impact of Short-Range Scattering on the Metallic Transport of Strongly Correlated 2D Holes in GaAs Quantum Wells
Nicholas J. Goble, John D. Watson, Michael J. Manfra +1
Understanding the non-monotonic behavior in the temperature dependent resistance, R(T), of strongly correlated two-dimensional (2D) carriers in clean semiconductors has been a cent…
Evidence for effective mass reduction in GaAs/AlGaAs quantum wells
A. T. Hatke, M. A. Zudov, J. D. Watson +3
We have performed microwave photoresistance measurements in high mobility GaAs/AlGaAs quantum wells and investigated the value of the effective mass. Surprisingly, the effective ma…
Contrasting Energy Scales of the Reentrant Integer Quantum Hall States
N. Deng, J. D. Watson, L. P. Rokhinson +2
We report drastically different onset temperatures of the reentrant integer quantum Hall states in the second and third Landau level. This finding is in quantitative disagreement w…
Magnetoplasmon resonance in 2D electron system driven into a zero-resistance state
A. T. Hatke, M. A. Zudov, J. D. Watson +1
We report on a remarkably strong, and a rather sharp, photoresistance peak originating from a dimensional magnetoplasmon resonance (MPR) in a high mobility GaAs/AlGaAs quantum well…