9 papers
Theory of superconducting pairing near the mobility edge
Michael V. Feigel'man, Lev B. Ioffe, Emil A. Yuzbashyan
We develop a theory of a pseudogap state appearing near the superconductor-insulator transition in strongly disordered metals with attractive interaction. We show that such an inte…
Topologically protected quantum bits from Josephson junction arrays
L. B. Ioffe, M. V. Feigel'man, A. Ioselevich +3
All physical implementations of quantum bits (qubits), carrying the information and computation in a putative quantum computer, have to meet the conflicting requirements of environ…
Andreev Spectroscopy for Superconducting Phase Qubits
Mikhail V. Feigel'man, Lev B. Ioffe, Vadim B. Geshkenbein +1
We propose a new method to measure the coherence time of superconducting phase qubits based on the analysis of the magnetic-field dependent dc nonlinear Andreev current across a hi…
A Fault-Tolerant Superconducting Associative Memory
P. Chandra, L. B. Ioffe
The demand for high-density data storage with ultrafast accessibility motivates the search for new memory implementations. Ideally such storage devices should be robust to input er…
Andreev Spectroscopy for Superconductive Phase Qubit
M. V. Feigel'man, V. B. Geshkenbein, L. B. Ioffe +1
New method to probe quantum dynamics of the order parameter phase of a small superconductive island is proposed. The idea is to measure Andreev subgap conductance between the islan…
``Cold spots'': a new model for transport in high cuprates
L. B. Ioffe, A. J. Millis
We present a Boltzmann equation analysis of the transport properties of a model of electrons with a lifetime which is short everywhere except near the Brillouin zone diagonals. The…