Published December 2011 | Version v1
Journal article Metadata-only

Dissipation of a two-mode squeezed vacuum state in the single-mode amplitude damping channel

Creators

  • 1. Department of Electronic Information Engineering, Nanchang University, Nanchang 330031 (China)
  • 2. School of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022 (China)
  • 3. Department of Physics, Shanghai Jiao Tong University, Shanghai 200030 (China)

Description

We explore how a two-mode squeezed vacuum state sechθea†b†tanhθ |00> evolves when it undergoes a single-mode amplitude dissipative channel with rate of decay κ. We find that in this process not only the squeezing parameter decreases, tanhθ → e−κttanhθ, but also the second-mode vacuum state evolves into a chaotic state exp{b†b ln[(1 − e−2κt)tanh2 θ]}. The outcome state is no more a pure state, but an entangled mixed state. (general)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/20/12/120301

Additional details

Identifiers

DOI
10.1088/1674-1056/20/12/120301;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
20
Journal Issue
12
Journal Page Range
[5 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45013248
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
AMPLITUDES; CHAOS THEORY; DAMPING; MIXED STATES; PURE STATES; QUANTUM ENTANGLEMENT; VACUUM STATES
Descriptors DEC
MATHEMATICS; QUANTUM STATES