Anomalous evolution of quantum systems in the ultrastrong coupling regime

Abbas Arab; Sina Khorasani

doi:10.1117/12.916303

20 January 2012 Anomalous evolution of quantum systems in the ultrastrong coupling regime

Abbas Arab, Sina Khorasani

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 82681M (2012) https://doi.org/10.1117/12.916303
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Analysis of complex quantum systems having many partitions is a very complicated numerical task. As the number of entities increase, the computational burden blows up and at the same time accuracy is lost due to integration in timedomain. Here, we present a systematic and rigorous methodology to deal with the multi-partite quantum systems comprised of many quantum dots with arbitrary transition oscillator strengths as well as dipole-dipole interaction. No limit is imposed on the number of radiation modes in the interacting reservoir. We present an exact solution to this system and also a general self-generating automated code which is capable of solving the system in time-domain with full accuracy and maximal computational efficiency. The code is also able to compute the exact concurrency as the measure of entanglement. Various coupling regimes ranging from the weak to ultrastrong are analyzed and discussed.

Citation Download Citation

Abbas Arab and Sina Khorasani "Anomalous evolution of quantum systems in the ultrastrong coupling regime", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681M (20 January 2012); https://doi.org/10.1117/12.916303

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available