547 citations · 731 across the 5 of their papers we have counts for
6 papers
Quantum decoherence of a charge qubit in a spin-fermion model
R. M. Lutchyn, L. Cywinski, Cody P. Nave +1
We consider quantum decoherence in solid-state systems by studying the transverse dynamics of a single qubit interacting with a fermionic bath and driven by external pulses. Our in…
Gauge-invariant electromagnetic response of a chiral px+ipy superconductor
Roman M. Lutchyn, Pavel Nagornykh, Victor M. Yakovenko
We present a gauge-invariant theory of the electromagnetic response of a chiral px+ipy superconductor in the clean limit. Due to the spontaneously broken time-reversal symmetry, th…
How to Enhance Dephasing Time in Superconducting Qubits
L. Cywinski, R. M. Lutchyn, C. P. Nave +1
We theoretically investigate the influence of designed pulse sequences in restoring quantum coherence lost due to background noise in superconducting qubits. We consider both 1/f n…
Energy relaxation of superconducting charge qubit via Andreev processes
R. M. Lutchyn, L. I. Glazman
We study fundamental limitations on the energy relaxation rate of a superconducting charge qubit with a large-gap Cooper-pair box, . At a sufficiently large mismatch bet…
Effect of quantum fluctuations on even-odd energy difference in a Cooper-pair box
R. M. Lutchyn
We study the effect of quantum charge fluctuations on the even-odd energy difference for a small superconducting island (Cooper-pair box) connected to a large finite-size supercond…
Quasiparticle decay rate of Josephson charge qubit oscillations
Roman Lutchyn, Leonid Glazman, Anatoly Larkin
We analyze the decay of Rabi oscillations in a charge qubit consisting of a Cooper pair box connected to a finite-size superconductor by a Josephson junction. We concentrate on the…