The study of entropy in a transmission line resonator interacting with a capacitively coupled Cooper pair box
نویسندگان
چکیده
منابع مشابه
Quantum Measurement of a Coupled Nanomechanical Resonator—Cooper-Pair Box System
We show two effects as a result of considering the second-order correction to the spectrum of a nanomechanical resonator electrostatically coupled to a Cooper-pair box. The spectrum of the Cooper-pair box is modified in a way which depends on the Fock state of the resonator. Similarly, the frequency of the resonator becomes dependent upon the state of the Cooper-pair box. We consider whether th...
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Nanomechanical resonators (NRs) with very high frequency have a great potential for mass sensing with unprecedented sensitivity. In this study, we propose a scheme for mass sensing based on the NR capacitively coupled to a Cooper-pair box (CPB) driven by two microwave currents. The accreted mass landing on the resonator can be measured conveniently by tracking the resonance frequency shifts bec...
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چکیده ندارد.
15 صفحه اولNumerical study of energy loss by a nanomechanical oscillator coupled to a Cooper-pair box
We calculate the dynamics of a nanomechanical oscillator NMO coupled capacitively to a Cooper-pair box CPB by solving a stochastic Schrödinger equation with two Lindblad operators Commun. Math. Phys. 48, 119 1976 . . Both the NMO and the CPB are assumed dissipative, and the coupling is treated within the rotating wave approximation. We show numerically that, if the CPB decay time is smaller tha...
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– This paper is devoted to an analysis of the experiment by Nakamura et al. (Nature 398, 786 (1999)) on the quantum state control in Josephson junctions devices. By considering the relevant processes involved in the detection of the charge state of the box and a realistic description of the gate pulse we are able to analyze some aspects of the experiment (like the amplitude of the measurement c...
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ژورنال
عنوان ژورنال: Photonics Letters of Poland
سال: 2019
ISSN: 2080-2242
DOI: 10.4302/plp.v11i3.921