Robust platform for engineering pure-quantum-state transitions in polariton condensates

A. Askitopoulos; T. C.H. Liew; H. Ohadi; Z. Hatzopoulos; P. G. Savvidis; P. G. Lagoudakis

doi:10.1103/PhysRevB.92.035305

Robust platform for engineering pure-quantum-state transitions in polariton condensates

A. Askitopoulos^*, T. C.H. Liew, H. Ohadi, Z. Hatzopoulos, P. G. Savvidis, P. G. Lagoudakis

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report on pure-quantum-state polariton condensates in optical annular traps. The study of the underlying mechanism reveals that the polariton wave function always coalesces in a single pure quantum state that, counterintuitively, is always the uppermost confined state with the highest overlap with the exciton reservoir. The tunability of such states combined with the short polariton lifetime allows for ultrafast transitions between coherent mesoscopic wave functions of distinctly different symmetries, rendering optically confined polariton condensates a promising platform for applications such as many-body quantum circuitry and continuous-variable quantum processing.

Original language	English
Article number	035305
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.92.035305
Publication status	Published - 16 Jul 2015

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AU - Liew, T. C.H.

AU - Ohadi, H.

AU - Hatzopoulos, Z.

AU - Savvidis, P. G.

AU - Lagoudakis, P. G.

PY - 2015/7/16

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N2 - We report on pure-quantum-state polariton condensates in optical annular traps. The study of the underlying mechanism reveals that the polariton wave function always coalesces in a single pure quantum state that, counterintuitively, is always the uppermost confined state with the highest overlap with the exciton reservoir. The tunability of such states combined with the short polariton lifetime allows for ultrafast transitions between coherent mesoscopic wave functions of distinctly different symmetries, rendering optically confined polariton condensates a promising platform for applications such as many-body quantum circuitry and continuous-variable quantum processing.

AB - We report on pure-quantum-state polariton condensates in optical annular traps. The study of the underlying mechanism reveals that the polariton wave function always coalesces in a single pure quantum state that, counterintuitively, is always the uppermost confined state with the highest overlap with the exciton reservoir. The tunability of such states combined with the short polariton lifetime allows for ultrafast transitions between coherent mesoscopic wave functions of distinctly different symmetries, rendering optically confined polariton condensates a promising platform for applications such as many-body quantum circuitry and continuous-variable quantum processing.

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Robust platform for engineering pure-quantum-state transitions in polariton condensates

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