Multi-qubit entanglement swapping with squeezed modes

• URL: http://arxiv.org/abs/2410.18843v1
• Date: Thu, 24 Oct 2024 15:26:13 GMT
• Title: Multi-qubit entanglement swapping with squeezed modes
• Authors: Alexandru Macridin, Andrew Cameron, Cristian Pena, Si Xie, Raju Valivarthi, Panagiotis Spentzouris,
• Abstract summary: We present a hybrid continuous variable-discrete variable entanglement swapping protocol. It is capable of producing a large number of high-fidelity Bell pairs per signal. The effectiveness of the protocol is determined by the squeezing strength.
• Score: 37.69303106863453
• License:
• Abstract: We present a hybrid continuous variable-discrete variable entanglement swapping protocol using linear optics and homodyne measurements, capable of producing a large number of high-fidelity Bell pairs per signal, with an approximate $0.5$ probability of success. The effectiveness of the protocol is determined by the squeezing strength. To increase the number of Bell pairs, approximately 3 dB of extra squeezing is needed for each additional Bell pair. The protocol also generates single Bell pairs with an approximate $0.75$ probability for squeezing strengths $\lessapprox 15dB$, achievable with current technology.

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