再论费米子线性光学
Fermionic Linear Optics Revisited
摘要:
我们提供了另一种观点的费米子线性光学的斯莱特行列式方面的有效的经典模拟。我们研究了双模测量对费米子态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,见quant-ph/0401066。
英文摘要:
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, see quant-ph/0401066.
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