Network of phase frustrated photon Bose-Einstein condensates

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Abstract

A novel approach to tackling computationally challenging problems involves utilizing a physical system of coupled Bose-Einstein condensates (BEC). The problem of finding a ground state of a network of BECs can be mapped in polynomial time to any problem of the NP-Complete class. In our network, we use photonic BECs (pBECs) [1] which rapidly reach their lowest energy state, typically within a fraction of a nanosecond, after which they can be subjected to interference to extract relative phases. These phases are then interpreted as a solution to the original problem. In our setup, we employ a cavity formed by two highly reflective Bragg mirrors, a dye serving as a thermalizing agent, and a green laser acting as a photon source. Additionally, by nanostructuring [2] one of the mirrors, we achieve transverse confinement of the pBECs. We will present our latest findings on a system of negatively coupled triangular arrangement of pBECs exhibiting spin frustration.

References

[1] J. Klaers, Nature 468, 545-548 (2010).
[2] M. Vretenar, Advanced Optical Materials 11, 2202820 (2023).
Original languageEnglish
Publication statusPublished - 16 May 2024
EventCondensates of Light 2024: WE-Heraeus-Seminar - the Physikzentrum Bad Honnef, Bad Honnef, Germany
Duration: 12 May 202416 May 2024
https://www.we-heraeus-stiftung.de/veranstaltungen/condensates-of-light/main/
https://www.we-heraeus-stiftung.de/veranstaltungen/condensates-of-light/

Seminar

SeminarCondensates of Light 2024
Abbreviated titleCoL
Country/TerritoryGermany
CityBad Honnef
Period12/05/2416/05/24
Internet address

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