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Non-adiabatic holonomic quantum computation in decoherence-free subspaces
Dept. of Physics, Shandong University, China.
Dept. of Physics, Shandong University, China.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry.
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2012 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 109, no 17, 170501Article in journal, Letter (Refereed) Published
Abstract [en]

Quantum computation that combines the coherence stabilization virtues of decoherence-free subspaces and the fault tolerance of geometric holonomic control is of great practical importance. Some schemes of adiabatic holonomic quantum computation in decoherence-free subspaces have been proposed in the past few years. However, non-adiabatic holonomic quantum computation in decoherence-free subspaces, which avoids long run-time requirement but with all the robust advantages, remains an open problem. Here, we demonstrate how to realize non-adiabatic holonomic quantum computation in decoherence-free subspaces. By using only three neighboring physical qubits undergoing collective dephasing to encode one logical qubit, we realize a universal set of quantum gates. 

Place, publisher, year, edition, pages
2012. Vol. 109, no 17, 170501
Keyword [en]
Quantum computation, geometric phase, decoherence, quantum gates
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-181918DOI: 10.1103/PhysRevLett.109.170501ISI: 000310201000002OAI: oai:DiVA.org:uu-181918DiVA: diva2:558109
Note

Additional address (E. Sjöqvist): Centre for Quantum Technologies, NUS, Singapore.

Available from: 2012-10-01 Created: 2012-10-01 Last updated: 2017-12-07Bibliographically approved

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Sjöqvist, Erik

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