The two-qubit amplitude damping channel: Characterization using quantum stabilizer codes

Journal Article · Sat Oct 15 00:00:00 EDT 2016 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2016.06.024· OSTI ID:22617396

Omkar, S. ^[1]; Banerjee, Subhashish ^[2]; Shaji, Anil ^[1]

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1. School of Physics, IISER TVM, CET Campus, Thiruvananthapuram 695016, Kerala (India)
2. Indian Institute of Technology Rajasthan, Jodhpur- 342011 (India)

A protocol based on quantum error correction based characterization of quantum dynamics (QECCD) is developed for quantum process tomography on a two-qubit system interacting dissipatively with a vacuum bath. The method uses a 5-qubit quantum error correcting code that corrects arbitrary errors on the first two qubits, and also saturates the quantum Hamming bound. The dissipative interaction with a vacuum bath allows for both correlated and independent noise on the two-qubit system. We study the dependence of the degree of the correlation of the noise on evolution time and inter-qubit separation.

• OSTI ID: 22617396
• Journal Information: Annals of Physics, Vol. 373; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
DAMPING
ERRORS
QUBITS