全同多能级系统的置换对称性:第二量子化方法
Permutational symmetry for identical multi-level systems: a second quantized approach
摘要:
我们开发了一个框架,提供了一个简单的方法来充分利用相同的多层次系统的置换对称性。考虑到置换对称性,我们概述了一个简单的计划,允许映射的动态$N$相同的$d$ -水平系统的$d$玻色子模式与$N$粒子的动态,实现了一个简单和直接的方式对问题的维数指数减少。特别地,我们考虑了集体耗散项作用下,几个相同的多能级系统与一个共同的子系统相互作用的Lindblad动力学。
英文摘要:
We develop a framework that provides a straightforward approach to fully exploit the permutational symmetry of identical multi-level systems. By taking into account the permutational symmetry, we outline a simple scheme that allows to map the dynamics of $N$ identical $d$-level systems to the dynamics of $d$ bosonic modes with $N$ particles, achieving an exponential reduction on the dimensionality of the problem in a simple and straightforward way. In particular, we consider the Lindblad dynamics of several identical multi-level systems interacting with a common subsystem under the action of collective dissipation terms.
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