Loading...
Theory and simulation of cavity quantum electro-dynamics in multi-partite quantum complex systems
Alidoosty Shahraki, M ; Sharif University of Technology
841
Viewed
- Type of Document: Article
- DOI: 10.1007/s00339-013-8025-4
- Abstract:
- The cavity quantum electrodynamics of various complex systems is here analyzed using a general versatile code developed in this research. Such quantum multi-partite systems normally consist of an arbitrary number of quantum dots in interaction with an arbitrary number of cavity modes. As an example, a nine-partition system is simulated under different coupling regimes, consisting of eight emitters interacting with one cavity mode. Two-level emitters (e.g. quantum dots) are assumed to have an arrangement in the form of a linear chain, defining the mutual dipole-dipole interactions. It was observed that plotting the system trajectory in the phase space reveals a chaotic behavior in the so-called ultrastrong-coupling regime. This result is mathematically confirmed by detailed calculation of the Kolmogorov entropy, as a measure of chaotic behavior. In order to study the computational complexity of our code, various multi-partite systems consisting of one to eight quantum dots in interaction with one cavity mode were solved individually. Computation run times and the allocated memory for each system were measured
- Keywords:
- Phase space methods ; Quantum theory ; Arbitrary number ; Cavity mode ; Cavity Quantum Electrodynamics ; Chaotic behaviors ; Dipole dipole interactions ; Kolmogorov entropies ; Linear chain ; System trajectory ; Semiconductor quantum dots
- Source: Applied Physics A: Materials Science and Processing ; Vol. 115, issue. 2 , 2014 , p. 595-603
- URL: http://link.springer.com/article/10.1007%2Fs00339-013-8025-4