Berry phase of coupled two arbitrary spins in a time-varying magnetic field

许长谭,; 贺明明,; 陈刚,

doi:10.1088/1009-1963/15/5/006

Chinese Phys.

2006

DOI: 10.1088/1009-1963/15/5/006

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Berry phase of coupled two arbitrary spins in a time-varying magnetic field

许长谭许长谭¹,

贺明明贺明明²,

陈刚陈刚³

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Cited by 4 publications

(2 citation statements)

References 18 publications

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“…One of the basic applications of the Hadamard and the CNOT gate is to create entangled states. 63,73,74 Preparation of an entangled state via light− matter interaction is experimentally feasible with a laser pulse. 75 In our system, we make use of these gates and generate one of the entangled Bell states.…”

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confidence: 99%

“…Achieving two of the most important quantum gates like the universal CNOT and the Hadamard gate encourages us to perform a quantum logic sequence (quantum algorithm or entanglement creation). One of the basic applications of the Hadamard and the CNOT gate is to create entangled states. ,, Preparation of an entangled state via light–matter interaction is experimentally feasible with a laser pulse . In our system, we make use of these gates and generate one of the entangled Bell states.…”

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confidence: 99%

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Laser-Controlled Implementation of Controlled-NOT, Hadamard, SWAP, and Pauli Gates as Well as Generation of Bell States in a 3d–4f Molecular Magnet

Mummaneni

Liu

Lefkidis

et al. 2022

J. Phys. Chem. Lett.

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Using high-level ab initio many-body theory, we theoretically propose that the Dy and the Ni atoms in the [Dy2Ni2(L)4(NO3)2(DMF)2] real molecular magnet as well as in its core, that is, the [Dy2Ni2O6] system, act as two-level qubit systems. Despite their spatial proximity we can individually control each qubit in this highly correlated real magnetic system through specially designed laser-pulse combinations. This allows us to prepare any desired two-qubit state and to build several classical and quantum logic gates, such as the two-qubit (binary) CNOT gate with three distinct laser pulses. Other quantum logic gates include the single-qubit (unary) quantum X, Y, and Z Pauli gates; the Hadamard gate (which necessitates the coherent quantum superposition of two many-body electronic states); and the SWAP gate (which plays an important role in Shor’s algorithm for integer factorization). Finally, by sequentially using the achieved CNOT and Hadamard gates we are able to obtain the maximally entangled Bell states, for example, ( )(|00⟩ + |11⟩).

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mentioning

confidence: 99%

mentioning

confidence: 99%

Laser-Controlled Implementation of Controlled-NOT, Hadamard, SWAP, and Pauli Gates as Well as Generation of Bell States in a 3d–4f Molecular Magnet

Mummaneni

Liu

Lefkidis

et al. 2022

J. Phys. Chem. Lett.

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The geometric phase of the quantum systems with slow but finite rate of the external time-dependent field

2007

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Berry phase in Tavis-Cummings model

Chen

Liang

2007

Eur. Phys. J. D

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Berry phase of coupled two arbitrary spins in a time-varying magnetic field

Cited by 4 publications

References 18 publications

Laser-Controlled Implementation of Controlled-NOT, Hadamard, SWAP, and Pauli Gates as Well as Generation of Bell States in a 3d–4f Molecular Magnet

Laser-Controlled Implementation of Controlled-NOT, Hadamard, SWAP, and Pauli Gates as Well as Generation of Bell States in a 3d–4f Molecular Magnet

The geometric phase of the quantum systems with slow but finite rate of the external time-dependent field

Berry phase in Tavis-Cummings model

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