Analytical studies of spectrum broadcast structures in quantum Brownian motion

作者：Tuziemski J^*; Korbicz J K

来源：Journal of Physics A-Mathematical and Theoretical, 2016, 49(44): 445301.

DOI：10.1088/1751-8113/49/44/445301

• decoherence
• quantum open systems
• quantum communication

Spectrum broadcast structures are a new and fresh concept in the quantum-to-classical transition, introduced recently in the context of decoherence and the appearance of objective features in quantum mechanics. These are specific quantum state structures, responsible for the objectivization of the decohered state of a system. Recently, they have been demonstrated by means of the well-known quantum Brownian motion model of the recoilless limit (infinitely massive central system), as the principal interest lies in information transfer from the system to the environment. However, a final analysis relied on numerics. Here, after a presentation of the main concepts, we perform analytical studies of the model, showing the timescales and the efficiency of the spectrum broadcast structure formation. We consider a somewhat simplified environment, being random with a uniform distribution of frequencies.

• 出版日期2016-11-4