scholarly journals Generating the Schrödinger cat state in a nanomechanical resonator coupled to a charge qubit

2014 ◽  
Vol 527 (1-2) ◽  
pp. 180-186 ◽  
Author(s):  
Jian-Qi Zhang ◽  
Wei Xiong ◽  
Shuo Zhang ◽  
Yong Li ◽  
Mang Feng
2017 ◽  
Vol 31 (36) ◽  
pp. 1750343
Author(s):  
Chao-Quan Wang ◽  
Jian Zou ◽  
Zhi-Ming Zhang

We propose a scheme for generating squeezed states of a nanomechanical resonator. The scheme is based on a hybrid system consisting of two NAMRs and a superconducting charge qubit (SCCQ). The nonlinear interaction between the two nanomechanical resonators (NAMRs) can be implemented by setting the external biased flux of the SCCQ at some certain values, which plays the role of “nonlinear media”. The noise in the SCCQ does not need to be considered, since we can adiabatically keep the SCCQ at the ground state. In addition, the squeezing parameters can also be adjusted by changing the external driving voltage.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Damian Kołaczek ◽  
Bartłomiej J. Spisak ◽  
Maciej Wołoszyn

AbstractThe coherent superposition of two well separated Gaussian wavepackets, with defects caused by their imperfect preparation, is considered within the phase-space approach based on the Wigner distribution function. This generic state is called the defective Schrödinger cat state due to this imperfection which significantly modifies the interference term. Propagation of this state in the phase space is described by the Moyal equation which is solved for the case of a dispersive medium with a Gaussian barrier in the above-barrier reflection regime. Formally, this regime constitutes conditions for backscattering diffraction phenomena. Dynamical quantumness and the degree of localization in the phase space of the considered state as a function of its imperfection are the subject of the performed analysis. The obtained results allow concluding that backscattering communication based on the defective Schrödinger cat states appears to be feasible with existing experimental capabilities.


2012 ◽  
Vol 86 (5) ◽  
Author(s):  
Tomasz Kwapiński ◽  
Ryszard Taranko
Keyword(s):  

1996 ◽  
Vol 54 (5) ◽  
pp. 4519-4527 ◽  
Author(s):  
Peter Goetsch ◽  
Paolo Tombesi ◽  
David Vitali

2009 ◽  
Vol 102 (3) ◽  
Author(s):  
Georg M. Reuther ◽  
David Zueco ◽  
Peter Hänggi ◽  
Sigmund Kohler
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document