Witnessing entanglement via the geometric phase in a impurity-doped bose-einstein condensate
X Wu, SP Jia, CL Cai, LM Kuang - arXiv preprint arXiv:2106.00224, 2021 - arxiv.org
X Wu, SP Jia, CL Cai, LM Kuang
arXiv preprint arXiv:2106.00224, 2021•arxiv.orgWe propose a theoretical scheme to witness quantum entanglement via the geometric
phase in an impurity-doped Bose-Einstein condensate (BEC), which is a micro-macro
quantum system consisting of two Rydberg impurity qubits and the BEC. We calculate the
geometric phase of the impurity qubits in the presence of the initial micro-micro and micro-
macro entanglement, respectively. It is demonstrated that the geometric phase of the
impurity qubits can witness not only inter-qubit micro-micro entanglement, but also qubit …
phase in an impurity-doped Bose-Einstein condensate (BEC), which is a micro-macro
quantum system consisting of two Rydberg impurity qubits and the BEC. We calculate the
geometric phase of the impurity qubits in the presence of the initial micro-micro and micro-
macro entanglement, respectively. It is demonstrated that the geometric phase of the
impurity qubits can witness not only inter-qubit micro-micro entanglement, but also qubit …
We propose a theoretical scheme to witness quantum entanglement via the geometric phase in an impurity-doped Bose-Einstein condensate (BEC), which is a micro-macro quantum system consisting of two Rydberg impurity qubits and the BEC. We calculate the geometric phase of the impurity qubits in the presence of the initial micro-micro and micro-macro entanglement, respectively. It is demonstrated that the geometric phase of the impurity qubits can witness not only inter-qubit micro-micro entanglement, but also qubit-BEC micro-macro entanglement. Our work provide a new insight to witness micro-micro and micro-macro entanglement in a impurity-doped BEC.
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