KFU. Card publication. Coherent manipulation of dipolar coupled spins in an anisotropic environment

KAZAN
FEDERAL UNIVERSITY

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COHERENT MANIPULATION OF DIPOLAR COUPLED SPINS IN AN ANISOTROPIC ENVIRONMENT

Form of presentation

Articles in international journals and collections

Year of publication

2014

Язык

русский

Authors, employees of KFU

Baybekov Eduard Ildarovich, author

Gafurov Marat Revgerovich, author

Zverev Dmitriy Germanovich, author

Kurkin Igor Nikolaevich, author

Malkin Boris Zalmanovich, author

Bibliographic description in the original language

Baibekov, E. I.; Gafurov, M. R.; Zverev, D. G.; Kurkin, I. N.; Malkin, B. Z.;Barbara, B. Coherent manipulation of dipolar coupled spins in an anisotropic environment. Phys. Rev. B 2014, 90 (17), p.174402(9). DOI: 10.1103/PhysRevB.90.174402

Annotation

We study coherent dynamics in a system of dipolar coupled spin qubits diluted in a solid and subjected to a driving microwave field. In the case of rare earth ions, an anisotropic crystal background results in anisotropic g tensor and thus modifies the dipolar coupling. We develop a microscopic theory of spin relaxation in a transient regime for the frequently encountered case of axially symmetric crystal field. The calculated decoherence rate is nonlinear in the Rabi frequency. We show that the direction of a static magnetic field that corresponds to the highest spin g factor is preferable in order to obtain a higher number of coherent qubit operations. The results of calculations are in excellent agreement with our experimental data on Rabi oscillations recorded for a series of CaWO4 crystals with different concentrations of Nd3+ ions.

Keywords

Quantum computing, Rabi oscillations, EPR, ESR

The name of the journal

PHYS REV B

URL

http://dx.doi.org/10.1103/PhysRevB.90.174402

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=90003&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Baybekov Eduard Ildarovich	ru_RU
dc.contributor.author	Gafurov Marat Revgerovich	ru_RU
dc.contributor.author	Zverev Dmitriy Germanovich	ru_RU
dc.contributor.author	Kurkin Igor Nikolaevich	ru_RU
dc.contributor.author	Malkin Boris Zalmanovich	ru_RU
dc.date.accessioned	2014-01-01T00:00:00Z	ru_RU
dc.date.available	2014-01-01T00:00:00Z	ru_RU
dc.date.issued	2014	ru_RU
dc.identifier.citation	Baibekov, E. I.; Gafurov, M. R.; Zverev, D. G.; Kurkin, I. N.; Malkin, B. Z.;Barbara, B. Coherent manipulation of dipolar coupled spins in an anisotropic environment. Phys. Rev. B 2014, 90 (17), p.174402(9). DOI: 10.1103/PhysRevB.90.174402	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=90003&p_lang=2	ru_RU
dc.description.abstract	PHYS REV B	ru_RU
dc.description.abstract	We study coherent dynamics in a system of dipolar coupled spin qubits diluted in a solid and subjected to a driving microwave field. In the case of rare earth ions, an anisotropic crystal background results in anisotropic g tensor and thus modifies the dipolar coupling. We develop a microscopic theory of spin relaxation in a transient regime for the frequently encountered case of axially symmetric crystal field. The calculated decoherence rate is nonlinear in the Rabi frequency. We show that the direction of a static magnetic field that corresponds to the highest spin g factor is preferable in order to obtain a higher number of coherent qubit operations. The results of calculations are in excellent agreement with our experimental data on Rabi oscillations recorded for a series of CaWO4 crystals with different concentrations of Nd3+ ions.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Quantum computing	ru_RU
dc.subject	Rabi oscillations	ru_RU
dc.subject	EPR	ru_RU
dc.subject	ESR	ru_RU
dc.title	Coherent manipulation of dipolar coupled spins in an anisotropic environment	ru_RU
dc.type	Articles in international journals and collections	ru_RU