Tunable superconducting qudit mediated by microwave photons

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · AIP Advances

DOI:https://doi.org/10.1063/1.4930103· OSTI ID:22492336

Cho, Sung Un ^[1]; Bae, Myung-Ho; Kim, Nam ^[1]; Kang, Kicheon ^[2]

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1. Korea Research Institute of Standards and Science, Daejeon 305-340 (Korea, Republic of)
2. Department of Physics, Chonnam National University, Gwangju 500-757 (Korea, Republic of)

We have investigated the time-domain characteristics of the Autler-Townes doublet in a superconducting circuit. The transition probabilities between the ground state and the Autler-Townes doublet states are shown to be controlled in a phase-coherent manner using a well-known microwave pulse pattern technique. The experimental results are well explained by a numerical simulation based on the Markovian master equation. Our result indicates that the Autler-Townes doublet states might be useful as a tunable qudit for implementation of quantum information processing, in particular as a multivalued quantum logic element.

• OSTI ID: 22492336
• Journal Information: AIP Advances, Vol. 5, Issue 8; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTERIZED SIMULATION
ELECTROMAGNETIC PULSES
EQUATIONS
GROUND STATES
IMPLEMENTATION
MARKOV PROCESS
MICROWAVE RADIATION
PHOTONS
PROBABILITY
PROCESSING
QUANTUM INFORMATION
SUPERCONDUCTING DEVICES