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Information constraint in open quantum systems
- Source :
- Physical Review B. 104
- Publication Year :
- 2021
- Publisher :
- American Physical Society (APS), 2021.
-
Abstract
- We propose an effect called information constraint which is characterized by the existence of different decay rates of signal strengths propagating along opposite directions. It is an intrinsic property of a type of open quantum system, which does not rely on boundary conditions. We define the value of information constraint ($I_C$) as the ratio of different decay rates and derive the analytical representation of $I_C$ for general quadratic Lindbladian systems. Based on information constraint, we can provide a simple and elegant explanation of chiral and helical damping, and get the local maximum points of relative particle number for the periodical boundary system, consistent with numerical calculations. Inspired by information constraint, we propose and prove the correspondence between edge modes and damping modes. A new damping mode called Dirac damping is constructed, and chiral/helical damping can be regarded as a special case of Dirac damping.<br />17 pages, 2 figures
- Subjects :
- Physics
Constraint (information theory)
Open quantum system
Quadratic equation
Condensed Matter - Mesoscale and Nanoscale Physics
Dirac (video compression format)
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Mathematical analysis
FOS: Physical sciences
Boundary (topology)
Boundary value problem
Representation (mathematics)
Quantum
Subjects
Details
- ISSN :
- 24699969 and 24699950
- Volume :
- 104
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....0b1aa28274816d8f261fe3fbf209e729