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Title: Tunable superconducting qudit mediated by microwave photons

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.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3]
  1. Korea Research Institute of Standards and Science, Daejeon 305-340 (Korea, Republic of)
  2. (Korea, Republic of)
  3. Department of Physics, Chonnam National University, Gwangju 500-757 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22492336
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 8; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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