Superadiabatic generation of cat states in bosonic Josephson junctions under particle losses

Takuya Hatomura and Krzysztof Pawłowski
Phys. Rev. A 99, 043621 – Published 22 April 2019

Abstract

We investigate a superadiabatic scheme to produce a cat state in a bosonic Josephson junction in absence and presence of particle losses. The generation scheme is based on shortcuts to adiabaticity and strongly relies on the parity conservation. The parity conservation also ensures that the produced state is a superposition of cat states with various sizes. Parity is also the quantity to be measured in order to utilize the produced state in interferometry. The generation scheme still works even if a number of particle losses during generation are substantial.

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  • Received 11 January 2019

DOI:https://doi.org/10.1103/PhysRevA.99.043621

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Takuya Hatomura1 and Krzysztof Pawłowski2

  • 1Department of Physics, University of Tokyo, 113-8654 Tokyo, Japan
  • 2Center for Theoretical Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland

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Issue

Vol. 99, Iss. 4 — April 2019

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