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Dissipation in circuit quantum electrodynamics: lasing and cooling of a low-frequency oscillator

DSpace at IIT Bombay

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Title Dissipation in circuit quantum electrodynamics: lasing and cooling of a low-frequency oscillator
 
Creator HAUSS, J
FEDOROV, A
ANDRE, S
BROSCO, V
HUTTER, C
KOTHARI, R
YESHWANTH, S
SHNIRMAN, A
SCHON, G
 
Subject nanomechanical resonator
superconducting qubit
josephson-junctions
single-electron
flux qubit
lasers
bistability
relaxation
dynamics
photon
 
Description Superconducting qubits coupled to electric or nanomechanical resonators display effects previously studied in quantum electrodynamics ( QED) as well as extensions thereof. Here, we consider a driven qubit coupled to a low-frequency oscillator and study the influence of dissipation. When the qubit is driven to perform Rabi oscillations, with Rabi frequency in resonance with the oscillator, the latter can be driven far from equilibrium. Blue detuned driving leads to a population inversion in the qubit and lasing behavior of the oscillator ('single-atom laser'). For red detuning, the qubit cools the oscillator. This behavior persists at the symmetry point where the qubit-oscillator coupling is quadratic and decoherence effects are minimized. Here, the system realizes a 'single-atom-two-photon laser'.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-03T15:38:06Z
2011-12-26T12:54:17Z
2011-12-27T05:41:56Z
2011-08-03T15:38:06Z
2011-12-26T12:54:17Z
2011-12-27T05:41:56Z
2008
 
Type Article
 
Identifier NEW JOURNAL OF PHYSICS, 10(), -
1367-2630
http://dx.doi.org/10.1088/1367-2630/10/9/095018
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9077
http://hdl.handle.net/10054/9077
 
Language en