LDRD final report on theory and exploration of quantum-dot optical nonlinearities and coherences.

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A microscopic theory for investigating quantum-dot optical properties was developed. The theory incorporated advances on various aspects of quantum-dot physics developed at Sandia and elsewhere. Important components are a non-Markovian treatment of polarization dephasing due to carrier-carrier scattering (developed at Sandia) and a nonperturbative treatment within a polaron picture of the scattering of carriers by longitudinal-optical phonons (developed at Bremen University). A computer code was also developed that provides a detailed accounting of electronic structure influences and a consistent treatment of many-body effects, the latter via the incorporation of results from the microscopic theory. This code was used to explore ... continued below

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47 p.

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Chow, Weng Wah November 1, 2008.

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Description

A microscopic theory for investigating quantum-dot optical properties was developed. The theory incorporated advances on various aspects of quantum-dot physics developed at Sandia and elsewhere. Important components are a non-Markovian treatment of polarization dephasing due to carrier-carrier scattering (developed at Sandia) and a nonperturbative treatment within a polaron picture of the scattering of carriers by longitudinal-optical phonons (developed at Bremen University). A computer code was also developed that provides a detailed accounting of electronic structure influences and a consistent treatment of many-body effects, the latter via the incorporation of results from the microscopic theory. This code was used to explore quantum coherence physics in a quantum-dot system. The investigation furthers the understanding of the underlying differences between atomic quantum coherence and semiconductor quantum coherence, and helps improve the potential of using quantum coherences in quantum computing, coherent control and high-resolution spectroscopy.

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47 p.

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  • Report No.: SAND2008-7608
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/961655 | External Link
  • Office of Scientific & Technical Information Report Number: 961655
  • Archival Resource Key: ark:/67531/metadc926637

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Office of Scientific & Technical Information Technical Reports

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  • November 1, 2008

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

Description Last Updated

  • Dec. 5, 2016, 10:58 p.m.

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Chow, Weng Wah. LDRD final report on theory and exploration of quantum-dot optical nonlinearities and coherences., report, November 1, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc926637/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.