123 citations · 163 across the 5 of their papers we have counts for
5 papers
Decoherence from ensembles of two-level fluctuators
Josef Schriefl, Yuriy Makhlin, Alexander Shnirman +1
1/f noise, the major source of dephasing in Josephson qubits, may be produced by an ensemble of two-level systems. Depending on the statistical properties of their distribution, th…
Dephasing by a nonstationary classical intermittent noise
Josef Schriefl, Maxime Clusel, David Carpentier +1
We consider a new phenomenological model for a classical intermittent noise and study its effects on the dephasing of a two-level system. Within this model, the evolution o…
Quantum impurity approach to a coupled qubit problem
Sebastien Camalet, Josef Schriefl, Pascal Degiovanni +1
We consider a system of two qubits at the ends of a finite length 1D cavity. This problem is mapped onto the double-Kondo model which is also shown to describe the low energy physi…
Dephasing due to nonstationary 1/f noise
J. Schriefl, M. Clusel, D. Carpentier +2
Motivated by recent experiments with Josephson qubits we propose a new phenomenological model for 1/f noise due to collective excitations of interacting defects in the qubit's envi…
Nonstationary dephasing of two level systems
Josef Schriefl, Maxime Clusel, David Carpentier +1
We investigate the influence of nonstationary 1/f^mu noise, produced by interacting defects, on a quantum two-level system. Adopting a simple phenomenological model for this noise…