117 citations · 346 across the 11 of their papers we have counts for
11 papers
Decoherence in dc SQUID phase qubits
Hanhee Paik, S. K. Dutta, R. M. Lewis +8
We report measurements of Rabi oscillations and spectroscopic coherence times in an Al/AlOx/Al and three Nb/AlOx/Nb dc SQUID phase qubits. One junction of the SQUID acts as a phase…
Observation of pinning mode of stripe phases of 2D systems in high Landau levels
G. Sambandamurthy, R. M. Lewis, Han Zhu +5
We study the radio-frequency diagonal conductivities of the anisotropic stripe phases of higher Landau levels near half integer fillings. In the hard direction, in which larger dc…
Comparison of coherence times in three dc SQUID phase qubits
Hanhee Paik, B. K. Cooper, S. K. Dutta +8
We report measurements of spectroscopic linewidth and Rabi oscillations in three thin-film dc SQUID phase qubits. One device had a single-turn Al loop, the second had a 6-turn Nb l…
Fast High-Fidelity Measurements of the Ground and Excited States of a dc-SQUID Phase Qubit
T. A. Palomaki, S. K. Dutta, R. M. Lewis +8
We have investigated the fidelity and speed of single-shot current-pulse measurements of the three lowest energy states of the dc SQUID phase qubit. We apply a short (2ns) current…
Microwave resonance of the reentrant insulating quantum Hall phases in the 1st excited Landau Level
R. M. Lewis, Yong P. Chen, L. W. Engel +3
We present measurements of the real diagonal microwave conductivity of the reentrant insulating quantum Hall phases in the first excited Landau level at temperatures below 50 mK. A…
AC Magnetotransport in Reentrant Insulating Phases of Two-dimensional Electrons near 1/5 and 1/3 Landau fillings
Yong P. Chen, Z. H. Wang, R. M. Lewis +5
We have measured high frequency magnetotransport of a high quality two-dimensional electron system (2DES) near the reentrant insulating phase (RIP) at Landau fillings () between…