Cold Atom Simulation of Interacting Relativistic Quantum Field Theories
Cold Atom Simulation of Interacting Relativistic Quantum Field Theories
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DOI：
10.1103/physrevlett.105.190403
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发表时间：
2010-11-04
影响因子：
8.6
通讯作者：
Pachos, Jiannis K.
中科院分区：
文献类型：
--
作者：
Cirac, J. Ignacio;Maraner, Paolo;Pachos, Jiannis K.
我们证明，狄拉克费米子自相互作用或与动态标量场耦合可以出现在设计的玻色子和费米子冷原子系统的低能部分。我们用两个时空维度定义的两个例子来说明这一点。第一个是自交互 Thirring 模型。第二个是与动态标量场耦合的狄拉克费米子模型，产生了 Gross-Neveu 模型。所提出的冷原子实验可用于探测相互作用量子场论的光谱或相关特性，从而提供晶格规范理论模拟的替代方案。
We demonstrate that Dirac fermions self-interacting or coupled to dynamic scalar fields can emerge in the low energy sector of designed bosonic and fermionic cold atom systems. We illustrate this with two examples defined in two spacetime dimensions. The first one is the self-interacting Thirring model. The second one is a model of Dirac fermions coupled to a dynamic scalar field that gives rise to the Gross-Neveu model. The proposed cold atom experiments can be used to probe spectral or correlation properties of interacting quantum field theories thereby presenting an alternative to lattice gauge theory simulations.