Decoherence Induced by Discontinuous and Stochastic Unitary Evolution of Qubits in Quanturn Computers

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理论物理通讯 ›› 1998, Vol. 29 ›› Issue (2) : 169-172.

KUANG Leman

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Decoherence Induced by Discontinuous and Stochastic Unitary Evolution of Qubits in Quanturn Computers

KUANG Leman

Author information +

文章历史 +

摘要

A new kind of decoherence in quantum computer memory, called intrinsic decoherence, is investigated in some details, which is caused by discontinuous and stochastic unitary evolution of qubits in quantum computers on a sufficient short time scale. It is found that the intrinsic decoherence leads to quasi-periodic decaying oscillations of the state fidelity of qubits in the time evolution. Schemes to reduce the intrinsic decoherence are proposed.

Abstract

导出引用

KUANG Leman. Decoherence Induced by Discontinuous and Stochastic Unitary Evolution of Qubits in Quanturn Computers[J]. 理论物理通讯, 1998, 29(2): 169-172

KUANG Leman. Decoherence Induced by Discontinuous and Stochastic Unitary Evolution of Qubits in Quanturn Computers[J]. Communications in Theoretical Physics, 1998, 29(2): 169-172

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