Multiphoton Coherent Manipulation in Large-Spin Qubits

被引：48

作者：

Bertaina, S. ^{[1
,2
]}

Chen, L. ^{[1
,2
]}

Groll, N. ^{[1
,2
]}

Van Tol, J. ^{[1
,2
]}

Dalal, N. S. ^{[1
,2
,3
]}

Chiorescu, I. ^{[1
,2
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32310 USA

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[3] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 05期

基金：

美国国家科学基金会;

关键词：

PARAMAGNETIC RESONANCE; QUANTUM DOTS; OSCILLATIONS; TRANSITIONS; BATH; MGO;

D O I：

10.1103/PhysRevLett.102.050501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large-spin Mn2+ ions (S = 5/2) diluted in a nonmagnetic MgO matrix of high crystalline symmetry are used to realize a six-level system that can be operated by means of multiphoton coherent Rabi oscillations. This spin system has a very small anisotropy which can be tuned in situ to reversibly transform the system between harmonic and nonharmonic level configurations. Decoherence effects are strongly suppressed as a result of the quasi-isotropic electron interaction with the crystal field and with the Mn-55 nuclear spins. These results suggest new ways of manipulating, reading, and resetting spin quantum states which can be applied to encode a qubit across several quantum levels.

引用

页数：4

共 26 条

[1] Generation of single optical plasmons in metallic nanowires coupled to quantum dots [J].

Akimov, A. V. ;

Mukherjee, A. ;

Yu, C. L. ;

Chang, D. E. ;

Zibrov, A. S. ;

Hemmer, P. R. ;

Park, H. ;

Lukin, M. D. .

NATURE, 2007, 450 (7168) :402-406

[2] Will spin-relaxation times in molecular magnets permit quantum information processing? [J].

Ardavan, Arzhang ;

Rival, Olivier ;

Morton, John J. L. ;

Blundell, Stephen J. ;

Tyryshkin, Alexei M. ;

Timco, Grigore A. ;

Winpenny, Richard E. P. .

PHYSICAL REVIEW LETTERS, 2007, 98 (05)

[3] Observation of Faraday rotation from a single confined spin [J].

Atatuere, Mete ;

Dreiser, Jan ;

Badolato, Antonio ;

Imamoglu, Atac .

NATURE PHYSICS, 2007, 3 (02) :101-105

[4] Quantum oscillations in a molecular magnet [J].

Bertaina, S. ;

Gambarelli, S. ;

Mitra, T. ;

Tsukerblat, B. ;

Mueller, A. ;

Barbara, B. .

NATURE, 2008, 453 (7192) :203-U5

[5] Rare-earth solid-state qubits [J].

Bertaina, S. ;

Gambarelli, S. ;

Tkachuk, A. ;

Kurkin, I. N. ;

Malkin, B. ;

Stepanov, A. ;

Barbara, B. .

NATURE NANOTECHNOLOGY, 2007, 2 (01) :39-42

[6]

Cohen-Tannoudji C, 2004, ATOM PHOTON INTERACT

[7]

DiVincenzo DP, 2000, FORTSCHR PHYS, V48, P771, DOI 10.1002/1521-3978(200009)48:9/11<771::AID-PROP771>3.0.CO

[8]

2-E

[9] Encoding a qubit into multilevel subspaces [J].

Grace, M ;

Brif, C ;

Rabitz, H ;

Walmsley, I ;

Kosut, R ;

Lidar, D .

NEW JOURNAL OF PHYSICS, 2006, 8

[10] Quantum register based on individual electronic and nuclear spin qubits in diamond [J].

Gurudev Dutt, M. V. ;

Childress, L. ;

Jiang, L. ;

Togan, E. ;

Maze, J. ;

Jelezko, F. ;

Zibrov, A. S. ;

Hemmer, P. R. ;

Lukin, M. D. .

SCIENCE, 2007, 316 (5829) :1312-1316

← 1 2 3 →