Voltage-controlled entanglement and quantum-information transfer between spatially separated quantum-dot molecules

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.042302· OSTI ID:21544570

Xinyou, Lue; Lili, Zheng ^[1]; Wu, Jing ^[2]; Zhiming, Zhan ^[3]

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1. School of Physics, Ludong University, Yantai 264025 (China)
2. Institute of Advanced Nanophotonics State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027 (China)
3. School of Physics and Information Engineering, Jianghan University, Wuhan 430056 (China)

We propose two schemes for generating entanglement and quantum-state transfer (QST) between two spatially separated semiconductor quantum dot molecules (QDMs) based on voltage-controlled tunneling effects. In the present schemes, two QDMs are trapped in two spatially separated cavities connected by a fiber. By numerically simulating the evolution of the system, we show that the generation of entanglement and QST can be controlled by an external gate voltage in our schemes. Moreover, proposed schemes are robust against the noise of system parameters.

• OSTI ID: 21544570
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.042302; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAVITIES
ELECTRIC POTENTIAL
MOLECULES
QUANTUM DOTS
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
SEMICONDUCTOR MATERIALS
TRAPPING
TUNNEL EFFECT
INFORMATION
MATERIALS
NANOSTRUCTURES