176 citations · 572 across the 9 of their papers we have counts for
5 papers · 1 filter
Dephasing of qubits by transverse low-frequency noise
Yuriy Makhlin, Alexander Shnirman
We analyze the dissipative dynamics of a two-level quantum system subject to low-frequency, e.g. 1/f noise, motivated by recent experiments with superconducting quantum circuits. W…
Nondemolition measurements of a single quantum spin using Josephson oscillations
L. Bulaevskii, M. Hruška, A. Shnirman +2
We consider a Josephson junction containing a single localized spin 1/2 between conventional singlet superconducting electrodes. We study the spin dynamics and measurements when a…
Quantum Zeno effect in the Cooper-pair transport through a double-island Josephson system
Alexander Shnirman, Yuriy Makhlin
Motivated by recent experiments, we analyze transport of Cooper pairs through a double-island Josephson qubit. At low bias in a certain range of gate voltages coherent superpositio…
Dephasing of solid-state qubits at optimal points
Yuriy Makhlin, Alexander Shnirman
Motivated by recent experiments with Josephson-junction circuits, we analyze the influence of various noise sources on the dynamics of two-level systems at optimal operation points…
Spin-spin correlators in Majorana representation
Alexander Shnirman, Yuriy Makhlin
In the Majorana representation of a spin 1/2 we find an identity which relates spin-spin correlators to one-particle fermionic correlators. This should be contrasted with the strai…