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arXiv quant-ph/0606097quant-phcond-mat.other
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耦合腔阵列中强相互作用的极化激元

Strongly Interacting Polaritons in Coupled Arrays of Cavities

Michael J. Hartmann, Fernando G. S. L. Brandao, Martin B. Plenio

摘要:

强关联多粒子系统中的量子现象的实验观察是困难的,因为涉及的长度和时间尺度很短。同时获得对各个成分的详细控制似乎更具挑战性,因此迄今为止抑制了将这样的系统用作量子计算设备。克服这些问题的实质性进展已经在光晶格中用冷原子实现,其中对集体性质的详细控制是可行的,但很难解决并因此控制或测量单个位点。在这里,我们表明,极化激元,结合原子和光子激发,在一个阵列的腔,如光子晶体或耦合环形微腔,可以形成一个强烈的相互作用的多体系统,其中单个粒子可以被控制和测量。所提出的设置的所有单个构建块都已经在实验中实现,从而证明了该设备作为量子模拟器的潜力。由于有可能创造有吸引力的现场潜力的计划允许创建高度纠缠态和一个阶段的粒子远比超流体离域。

英文摘要:

The experimental observation of quantum phenomena in strongly correlated many particle systems is difficult because of the short length- and timescales involved. Obtaining at the same time detailed control of individual constituents appears even more challenging and thus to date inhibits employing such systems as quantum computing devices. Substantial progress to overcome these problems has been achieved with cold atoms in optical lattices, where a detailed control of collective properties is feasible but it is very difficult to address and hence control or measure individual sites. Here we show, that polaritons, combined atom and photon excitations, in an array of cavities such as a photonic crystal or coupled toroidal micro-cavities, can form a strongly interacting many body system, where individual particles can be controlled and measured. All individual building blocks of the proposed setting have already been experimentally realised, thus demonstrating the potential of this device as a quantum simulator. With the possibility to create attractive on-site potentials the scheme allows for the creation of highly entangled states and a phase with particles much more delocalised than in superfluids.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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