Quantum simulations with multiphoton Fock states
Quantum simulations with multiphoton Fock states
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DOI：
10.1038/s41534-021-00427-w
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发表时间：
2019-06
影响因子：
7.6
通讯作者：
T. Sturges;T. McDermott;A. Buraczewski;W. Clements;J. Renema;S. Nam;T. Gerrits;A. Lita;W. Kolthammer;A. Eckstein;I. Walmsley;M. Stobi'nska
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作者：
T. Sturges;T. McDermott;A. Buraczewski;W. Clements;J. Renema;S. Nam;T. Gerrits;A. Lita;W. Kolthammer;A. Eckstein;I. Walmsley;M. Stobi'nska
量子模拟正在超越分析计算和实验观测的限制，成为研究复杂现象的重要工具，如量子拓扑、量子信息传递和相对论波动方程。到目前为止，用于原理证明实验的主要资源是量子比特、相干态或多个单粒子Fock态的集合。在这里，我们展示了一个使用真正的高阶Fock态进行的量子模拟，其中两个或更多不可区分的粒子占据相同的玻色子模式。这是通过在干涉仪上干涉多达五个光子的Fock态对，并用光子数分辨探测器测量输出态来实现的。这种资源高效的演示已经揭示了拓扑物质，模拟了非线性系统，并阐明了一种可以用于传输Majorana费米子的完美量子转移机制。
Quantum simulations are becoming an essential tool for studying complex phenomena, e.g. quantum topology, quantum information transfer and relativistic wave equations, beyond the limitations of analytical computations and experimental observations. To date, the primary resources used in proof-of-principle experiments are collections of qubits, coherent states or multiple single-particle Fock states. Here we show a quantum simulation performed using genuine higher-order Fock states, with two or more indistinguishable particles occupying the same bosonic mode. This was implemented by interfering pairs of Fock states with up to five photons on an interferometer, and measuring the output states with photon-number-resolving detectors. Already this resource-efficient demonstration reveals topological matter, simulates non-linear systems and elucidates a perfect quantum transfer mechanism which can be used to transport Majorana fermions.