Please use this identifier to cite or link to this item: https://doi.org/10.1038/srep00581
Title: Operational approach to open dynamics and quantifying initial correlations
Authors: Modi, K. 
Issue Date: 2012
Citation: Modi, K. (2012). Operational approach to open dynamics and quantifying initial correlations. Scientific Reports 2 : -. ScholarBank@NUS Repository. https://doi.org/10.1038/srep00581
Abstract: A central aim of physics is to describe the dynamics of physical systems. Schrödinger's equation does this for isolated quantum systems. Describing the time evolution of a quantum system that interacts with its environment, in its most general form, has proved to be difficult because the dynamics is dependent on the state of the environment and the correlations with it. For discrete processes, such as quantum gates or chemical reactions, quantum process tomography provides the complete description of the dynamics, provided that the initial states of the system and the environment are independent of each other. However, many physical systems are correlated with the environment at the beginning of the experiment. Here, we give a prescription of quantum process tomography that yields the complete description of the dynamics of the system even when the initial correlations are present. Surprisingly, our method also gives quantitative expressions for the initial correlation.
Source Title: Scientific Reports
URI: http://scholarbank.nus.edu.sg/handle/10635/112477
ISSN: 20452322
DOI: 10.1038/srep00581
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

23
checked on Aug 10, 2018

WEB OF SCIENCETM
Citations

22
checked on Jul 9, 2018

Page view(s)

22
checked on Jul 27, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.