scholarly journals Efficient scheme for hybrid teleportation via entangled coherent states in circuit quantum electrodynamics

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jaewoo Joo ◽  
Eran Ginossar
Keyword(s):  
Quantum Electrodynamics ◽  
Coherent States ◽  
Circuit Quantum Electrodynamics ◽  
Efficient Scheme ◽  
Entangled Coherent States

Photon-added Bell-type entangled coherent state and some nonclassical properties

2009 ◽  
Vol 87 (12) ◽  
pp. 1233-1245 ◽  
Author(s):  
Hong-Chun Yuan ◽  
Heng-Mei Li ◽  
Hong-Yi Fan
Keyword(s):  
Coherent State ◽  
Quantum Electrodynamics ◽  
Coherent States ◽  
Cavity Quantum Electrodynamics ◽  
Quantum Measurements ◽  
Nonclassical Properties ◽  
Entangled Coherent State ◽  
Creation Operators ◽  
Photon Excitations ◽  
Entangled Coherent States

We introduce a class of the photon-added Bell-type entangled coherent states (PABECSs) obtained from Bell-type entangled coherent states by applying creation operators. We investigate their entanglement characteristics by analyzing the entropy of entanglement and discuss the influence of photon excitations on quantum entanglement. It is shown that applying a creation operator can increase the amount of entanglement. We also study the statistical properties of such states by discussing the behavior of the quasi-probability functions graphically. In addition, a possible scheme is presented to produce the PABECSs by using cavity quantum electrodynamics and quantum measurements.

scholarly journals Two-resonator circuit quantum electrodynamics: Dissipative theory

2010 ◽  
Vol 81 (14) ◽  
Author(s):  
Georg M. Reuther ◽  
David Zueco ◽  
Frank Deppe ◽  
Elisabeth Hoffmann ◽  
Edwin P. Menzel ◽  
...  
Keyword(s):  
Quantum Electrodynamics ◽  
Circuit Quantum Electrodynamics

scholarly journals Efficient transfer of an arbitrary qutrit state in circuit quantum electrodynamics

2015 ◽  
Vol 40 (23) ◽  
pp. 5602 ◽  
Author(s):  
Tong Liu ◽  
Shao-Jie Xiong ◽  
Xiao-Zhi Cao ◽  
Qi-Ping Su ◽  
Chui-Ping Yang
Keyword(s):  
Quantum Electrodynamics ◽  
Circuit Quantum Electrodynamics ◽  
Efficient Transfer

scholarly journals Bipartite quantum channels using multipartite cluster-type entangled coherent states

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
P. P. Munhoz ◽  
J. A. Roversi ◽  
A. Vidiella-Barranco ◽  
F. L. Semião
Keyword(s):  
Coherent States ◽  
Quantum Channels ◽  
Cluster Type ◽  
Entangled Coherent States

scholarly journals Critical slowing down in circuit quantum electrodynamics

2021 ◽  
Vol 7 (21) ◽  
pp. eabe9492
Author(s):  
Paul Brookes ◽  
Giovanna Tancredi ◽  
Andrew D. Patterson ◽  
Joseph Rahamim ◽  
Martina Esposito ◽  
...  
Keyword(s):  
Quantum Electrodynamics ◽  
Quantum Circuit ◽  
Critical Slowing Down ◽  
Microwave Cavity ◽  
Many Body ◽  
Circuit Quantum Electrodynamics ◽  
Slowing Down ◽  
The Rich ◽  
First Order Phase ◽  
Shed Light

Critical slowing down of the time it takes a system to reach equilibrium is a key signature of bistability in dissipative first-order phase transitions. Understanding and characterizing this process can shed light on the underlying many-body dynamics that occur close to such a transition. Here, we explore the rich quantum activation dynamics and the appearance of critical slowing down in an engineered superconducting quantum circuit. Specifically, we investigate the intermediate bistable regime of the generalized Jaynes-Cummings Hamiltonian (GJC), realized by a circuit quantum electrodynamics (cQED) system consisting of a transmon qubit coupled to a microwave cavity. We find a previously unidentified regime of quantum activation in which the critical slowing down reaches saturation and, by comparing our experimental results with a range of models, we shed light on the fundamental role played by the qubit in this regime.

scholarly journals Cutoff-Free Circuit Quantum Electrodynamics

2017 ◽  
Vol 119 (7) ◽  
Author(s):  
Moein Malekakhlagh ◽  
Alexandru Petrescu ◽  
Hakan E. Türeci
Keyword(s):  
Quantum Electrodynamics ◽  
Circuit Quantum Electrodynamics

scholarly journals Entangled coherent states under dissipation

2010 ◽  
Vol 283 (19) ◽  
pp. 3825-3829 ◽  
Author(s):  
F. Lastra ◽  
G. Romero ◽  
C.E. López ◽  
N. Zagury ◽  
J.C. Retamal
Keyword(s):  
Coherent States ◽  
Entangled Coherent States
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