High-fidelity adiabatic passage by composite sequences of chirped pulses

High-fidelity adiabatic passage by composite sequences of chirped pulses

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 can...

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Veröffentlicht in:Physical review letters 2011-06, Vol.106 (23), p.233001-233001, Article 233001
Hauptverfasser: Torosov, Boyan T, Guérin, Stéphane, Vitanov, Nikolay V
Format: Artikel
Sprache:eng
Schlagworte:
ACCURACY
ATOMIC AND MOLECULAR PHYSICS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COUPLING
ELECTRONIC CIRCUITS
INFORMATION
OPTIMIZATION
PULSE CIRCUITS
PULSE SHAPERS
PULSES
QUANTUM INFORMATION
QUANTUM STATES
SIGNAL CONDITIONERS
VARIATIONS
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container_title Physical review letters
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creator Torosov, Boyan T
Guérin, Stéphane
Vitanov, Nikolay V
description 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.
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source American Physical Society Journals
subjects ACCURACY
ATOMIC AND MOLECULAR PHYSICS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COUPLING
ELECTRONIC CIRCUITS
INFORMATION
OPTIMIZATION
PULSE CIRCUITS
PULSE SHAPERS
PULSES
QUANTUM INFORMATION
QUANTUM STATES
SIGNAL CONDITIONERS
VARIATIONS
title High-fidelity adiabatic passage by composite sequences of chirped pulses
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