Fermionic linear optics revisited

Fermionic linear optics revisited
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DOI:
10.1007/s10701-005-8657-0
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发表时间:
2005-12-01
影响因子:
1.5
通讯作者:
Terhal, BM
Terhal, BM
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
DiVincenzo, DP;Terhal, BM

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我们提供了另一种观点的有效的经典可模拟性的费米子线性光学的斯莱特行列式。我们研究了双模测量对费米子态的斯莱特数的一般影响。我们认为,大多数这样的测量是不能够(与费米子线性光学)的一个有效的精确实现的通用量子计算。我们的论点不适用于双模宇称测量,精确的量子计算成为可能。
We provide an alternative view of the efficient classical simulatibility of fermionic linear optics in terms of Slater determinants. We investigate the generic effects of two-mode measurements on the Slater number of fermionic states. We argue that most such measurements are not capable (in conjunction with fermion linear optics) of an efficient exact implementation of universal quantum computation. Our arguments do not apply to the two-mode parity measurement, for which exact quantum computation becomes possible.