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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Quantum interferences among Dexter energy transfer pathways.

Shuming Bai1, Peng Zhang1, Panayiotis Antoniou2

  • 1Department of Chemistry, Duke University, Durham, NC 27708, USA.

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|May 9, 2019
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Summary
This summary is machine-generated.

Dexter energy transfer involves exciton movement via electron-hole pair transfer through a bridge. Quantum interferences in these two-particle pathways can constructively enhance transfer rates in chemical systems.

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Area of Science:

  • Chemical Physics
  • Quantum Chemistry
  • Materials Science

Background:

  • Dexter energy transfer facilitates exciton (electron-hole pair) movement between donor and acceptor chromophores.
  • This process occurs through a bridge, involving both bonded and non-bonded interactions.
  • It is enabled by one-particle and two-particle interaction mechanisms.

Purpose of the Study:

  • To explore Dexter energy transfer pathway interferences in chemical systems.
  • To investigate the role of quantum interferences in two-particle Dexter coupling.
  • To analyze Dexter coupling in non-covalent assemblies using a novel assessment method.

Main Methods:

  • Theoretical exploration of Dexter energy transfer mechanisms.
  • Analysis of quantum interferences arising from non-adiabatic coupling.
  • Application of a method to assess Dexter coupling pathway strengths and interferences.
  • Consideration of one-particle and two-particle coupling interactions.

Main Results:

  • Coherent quantum interferences arise among Dexter energy coupling pathways due to their two-particle nature.
  • Identical parallel coupling pathways can constructively interfere, enhancing Dexter transfer rates.
  • Two parallel Dexter coupling routes may enhance couplings by over a factor of two due to virtual particle combinatorics.

Conclusions:

  • Dexter energy transfer pathway interferences are complex but can be governed by simple rules in specific cases.
  • Understanding these interferences is crucial for optimizing energy transfer in chemical systems.
  • The study provides a method to assess pathway strengths and interferences in one- and two-particle coupling contexts.