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arXiv 2312.04069quant-phgr-qc
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具有庞加莱对称性的马尔可夫量子主方程

Markovian quantum master equation with Poincaré symmetry

Kaito Kashiwagi, Akira Matsumura

AI总结:

本文在庞加莱对称性约束下推导有质量自旋0粒子的GKSL量子主方程,发现场满足耗散Klein-Gordon方程且保持微观因果性。

摘要:

我们研究在庞加莱对称性下会实现何种 Gorini-Kossakowski-Sudarshan-Lindblad(GKSL)形式的马尔可夫量子主方程(QME)。马尔可夫 QME 的解由量子动力学半群给出,我们为其引入庞加莱变换下的不变性。利用动力学半群的不变性并应用庞加莱群的幺正表示,我们推导了相对论性有质量自旋 0 粒子的马尔可夫 QME。通过引入该有质量粒子的场算符并考察其演化,我们发现该场遵循耗散 Klein-Gordon 方程。此外,我们证明类空间分离区域的任意两个局域算符彼此对易。这意味着该有质量粒子的耗散模型满足微观因果性条件。

英文摘要:

We investigate what kind of Markovian quantum master equation (QME) in the Gorini-Kossakowski-Sudarshan-Lindblad (GKSL) form is realized under Poincaré symmetry. The solution of the Markovian QME is given by a quantum dynamical semigroup, for which we introduce invariance under Poincaré transformations. Using the invariance of the dynamical semigroup and applying the unitary representation of Poincaré group, we derive the Markovian QME for a relativistic massive spin-0 particle. Introducing the field operator of the massive particle and examining its evolution, we find that the field follows a dissipative Klein-Gordon equation. In addition, we show that any two local operators for spacelike separated regions commute with each other. This means that the microcausality condition is satisfied for the dissipative model of the massive particle.

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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