675 citations · 5.6k across the 111 of their papers we have counts for
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Spin and Spin-Wave Dynamics in Josephson Junctions
Zohar Nussinov, Alexander Shnirman, Daniel P. Arovas +2
We extend the Keldysh formulation to quantum spin systems and derive exact equations of motion. This allows us to explore the dynamics of single spins and of ferromagnets when thes…
Generation of Squeezed States of Nanomechanical Resonators by Reservoir Engineering
P. Rabl, A. Shnirman, P. Zoller
An experimental demonstration of a non-classical state of a nanomechanical resonator is still an outstanding task. In this paper we show how the resonator can be cooled and driven…
Geometric nature of the environment-induced Berry phase and geometric dephasing
Robert S. Whitney, Yuriy Makhlin, Alexander Shnirman +1
We investigate the geometric phase or Berry phase (BP) acquired by a spin-half which is both subject to a slowly varying magnetic field and weakly-coupled to a dissipative environm…
Cavity QED in superconducting circuits: susceptibility at elevated temperatures
Ileana Rau, Göran Johansson, Alexander Shnirman
We study the properties of superconducting electrical circuits, realizing cavity QED. In particular we explore the limit of strong coupling, low dissipation, and elevated temperatu…
Spin and Current Variations in Josephson Junctions
A. Shnirman, Z. Nussinov, Jian-Xin Zhu +2
We study the dynamics of a single spin embedded in the tunneling barrier between two superconductors. As a consequence of pair correlations in the superconducting state, the spin d…
Berry phase with environment: classical versus quantum
Robert S. Whitney, Yuriy Makhlin, Alexander Shnirman +1
We discuss the concept of the Berry phase in a dissipative system. We show that one can identify a Berry phase in a weakly-dissipative system and find the respective correction to…