Published March 2013 | Version v1
Journal article Metadata-only

Average position in quantum walks with a U(2) coin

Creators

  • 1. Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026 (China)

Description

We investigated discrete-time quantum walks with an arbitary unitary coin. Here we discover that the average position 〈x〉 = max(〈x〉) sin(α + γ), while the initial state is 1/√2(|0L)+i|0R)). We verify the result, and obtain some symmetry properties of quantum walks with a U(2) coin with |0L〉 and |0R〉 as the initial state. (rapid communication)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/22/3/030310

Additional details

Identifiers

DOI
10.1088/1674-1056/22/3/030310;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
22
Journal Issue
3
Journal Page Range
[4 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45032204
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CALCULATION METHODS; QUANTUM MECHANICS; QUANTUM STATES; SYMMETRY; U GROUPS
Descriptors DEC
LIE GROUPS; MECHANICS; SYMMETRY GROUPS