Optimal cavity design for minimizing errors in cavity-QED-based atom-photon entangling gates with finite temporal duration

• URL: http://arxiv.org/abs/2211.04151v1
• Date: Tue, 8 Nov 2022 10:47:39 GMT
• Title: Optimal cavity design for minimizing errors in cavity-QED-based atom-photon entangling gates with finite temporal duration
• Authors: Takeru Utsugi, Rui Asaoka, Yuuki Tokunaga, and Takao Aoki
• Abstract summary: atom-photon entangling gates based on cavity quantum electrodynamics (QED) We analytically derive relations between cavity parameters, including transmittance, length, and effective cross-sectional area of the cavity. We also investigate the effects of pulse distortion using numerical simulations for the case of short pulse duration.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate atom-photon entangling gates based on cavity quantum electrodynamics (QED) for a finite photon-pulse duration, where not only the photon loss but also the temporal mode-mismatch of the photon pulse becomes a severe source of error. We analytically derive relations between cavity parameters, including transmittance, length, and effective cross-sectional area of the cavity, that minimize both the photon loss probability and the error rate due to temporal mode-mismatch by taking it into account as state-dependent pulse delay. We also investigate the effects of pulse distortion using numerical simulations for the case of short pulse duration.

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