Picturing qubits in phase space
Picturing qubits in phase space
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DOI:
10.1147/rd.481.0099
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
W. Wootters
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文献类型:
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作者:
W. Wootters
Focusing particularly on one-qubit and two-qubit systems, I explain how the quantum state of a system of n qubits can be expressed as a real function--a generalized Wigner function--on a discrete 2n ?? 2n phase space. The phase space is based on the finite field having 2n elements, and its geometric structure leads naturally to the construction of a complete set of 2n + 1 mutually conjugate bases.