Hybrid density matrix approach as a factorization scheme for many-body systems: Illustrated by a quantum dot-continuum system

Sandra C. Kuhn; Marten Richter

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Hybrid density matrix approach as a factorization scheme for many-body systems: Illustrated by a quantum dot-continuum system

机译：混合密度矩阵方法作为多体系统的分解方案：以量子点连续体系统为例

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We present a theoretical factorization scheme for interactions between many-body systems with localized discrete and delocalized quasicontinuous states. The projection operator technique combines a conventional correlation expansion with an exact diagonalization scheme. Our approach is capable of treating the continuum dynamically and to apply non-Markovian treatments beyond the Markovian approximation typically used in Lindblad formalism. Therefore it can be an important tool to describe a variety of systems as well as interaction mechanisms.

机译：我们为局部离散和离域准连续状态的多体系统之间的相互作用提供了一种理论分解方案。投影算子技术将常规的相关展开与精确的对角化方案结合在一起。我们的方法能够动态地处理连续体，并能够应用超出Lindblad形式主义通常使用的马尔可夫近似之外的非马尔可夫处理。因此，它可能是描述各种系统以及交互机制的重要工具。

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来源
《Physical review》 |2015年第15期|155309.1-155309.8|共8页
作者
Sandra C. Kuhn; Marten Richter;
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作者单位

Institut fuer Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universitaet Berlin, Hardenbergstrasse 36, EW 7-1, 10623 Berlin, Germany;

Institut fuer Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universitaet Berlin, Hardenbergstrasse 36, EW 7-1, 10623 Berlin, Germany;

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原文格式 PDF
正文语种 eng
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关键词
quantum dots; theory, models, and numerical simulation; quantum dots;

机译：量子点;理论;模型和数值模拟;量子点;

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2. Density Matrix Renormalization Group Approach for Many-Body Open Quantum Systems [J] . J. Rotureau, N. Michel, W. Nazarewicz, Physical review letters . 2006,第11期

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3. APS -APS March Meeting 2017 - Event - A Hybrid Classical/Quantum Approach for Large-Scale Studies of Quantum Systems with Density Matrix Embedding Theory [J] . Nicholas Rubin Bulletin of the American Physical Society . 2017,第4期

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5. Quantum transport and quantum measurement in mesoscopic systems: Reduced density matrix approach [D] . Luo, Junyan 2010

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7. Density Matrix Renormalization Group Approach for Many-Body Open Quantum Systems [O] . Rotureau, J., Michel, N., Nazarewicz, W., 2006

机译：多体开放量子系统的密度矩阵重归一化组方法

Hybrid density matrix approach as a factorization scheme for many-body systems: Illustrated by a quantum dot-continuum system

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