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Optimized three-level quantum transfers based on frequency-modulated optical excitations

Authors
  • Petiziol, Francesco1, 2
  • Arimondo, Ennio3, 4
  • Giannelli, Luigi5
  • Mintert, Florian6
  • Wimberger, Sandro1, 2
  • 1 Physical and Computer Sciences, University of Parma, Parco Area delle Scienze 7/A, Parma, 43124, Italy , Parma (Italy)
  • 2 Milano Bicocca Section, Parma Group, Parco Area delle Scienze 7/A, Parma, 43124, Italy , Parma (Italy)
  • 3 University of Pisa, Largo Bruno Pontecorvo 3, Pisa, 56127, Italy , Pisa (Italy)
  • 4 INO-CNR, Via G. Moruzzi 1, Pisa, 56124, Italy , Pisa (Italy)
  • 5 Theoretische Physik, Universität des Saarlandes, Saarbrücken, 66123, Germany , Saarbrücken (Germany)
  • 6 Imperial College, London, SW7 2AZ, United Kingdom , London (United Kingdom)
Type
Published Article
Journal
Scientific Reports
Publisher
Springer Nature
Publication Date
Feb 10, 2020
Volume
10
Issue
1
Identifiers
DOI: 10.1038/s41598-020-59046-8
Source
Springer Nature
License
Green

Abstract

The difficulty in combining high fidelity with fast operation times and robustness against sources of noise is the central challenge of most quantum control problems, with immediate implications for the realization of quantum devices. We theoretically propose a protocol, based on the widespread stimulated Raman adiabatic passage technique, which achieves these objectives for quantum state transfers in generic three-level systems. Our protocol realizes accelerated adiabatic following through the application of additional control fields on the optical excitations. These act along frequency sidebands of the principal adiabatic pulses, dynamically counteracting undesired transitions. The scheme facilitates experimental control, not requiring new hardly-accessible resources. We show numerically that the method is efficient in a very wide set of control parameters, bringing the timescales closer to the quantum speed limit, also in the presence of environmental disturbance. These results hold for complete population transfers and for many applications, e.g., for realizing quantum gates, both for optical and microwave implementations. Furthermore, extensions to adiabatic passage problems in more-level systems are straightforward.

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