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Enabling multiple intercavity polariton coherences by adding quantum confinement to cavity molecular polaritons

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3]
  1. Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093
  2. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093
  3. Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093

In this study, the “particle in a box” idea, which was broadly developed in semiconductor quantum dot research, was extended into mid-infrared (IR) cavity modes by applying lateral confinement in an optical cavity. The discrete cavity modes hybridized with molecular vibrational modes, resulting in a quartet of polariton states that can support multiple coherence states in the IR regime. We applied tailored pump pulse sequences to selectively prepare these coherences and verified the multi-coherence existence. The simulation based on Lindblad equation showed that because the quartet of polariton states resided in the same cavity, they were specifically robust toward decoherence caused by fluctuations in space. The multiple robust coherences paved the way for entangled states and coherent interactions between cavity polaritons, which would be critical for advancing polariton-based quantum information technology.

Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0022134
OSTI ID:
1906876
Alternate ID(s):
OSTI ID: 2422047
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 1 Vol. 120; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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