High-Fidelity Adiabatic Passage by Composite Sequences of Chirped Pulses

Journal Article · Fri Jun 10 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.233001· OSTI ID:21567448

Torosov, Boyan T ^[1]; Guerin, Stephane ^[2]; Vitanov, Nikolay V ^[1]

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1. Department of Physics, Sofia University, 5 James Bourchier Boulevard, 1164 Sofia (Bulgaria)
2. Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR CNRS 5209, BP 47870, F-21078 Dijon (France)

We present a method for optimization of the technique of adiabatic passage between two quantum states by composite sequences of frequency-chirped pulses with specific relative phases: composite adiabatic passage (CAP). By choosing the composite phases appropriately the nonadiabatic losses can be canceled to any desired order with sufficiently long sequences, regardless of the nonadiabatic coupling. The values of the composite phases are universal for they do not depend on the pulse shapes and the chirp. The accuracy of the CAP technique and its robustness against parameter variations make CAP suitable for high-fidelity quantum information processing.

• OSTI ID: 21567448
• Journal Information: Physical Review Letters, Vol. 106, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.106.233001; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
COUPLING
OPTIMIZATION
PULSE SHAPERS
PULSES
QUANTUM INFORMATION
QUANTUM STATES
VARIATIONS
ELECTRONIC CIRCUITS
INFORMATION
PULSE CIRCUITS
SIGNAL CONDITIONERS