The entanglement beam splitter: a quantum-dot spin in a double-sided optical microcavity

Abstract

We propose an entanglement beam splitter (EBS) using a quantum-dot spin in a double-sided optical microcavity. In contrast to the conventional optical beam splitter, the EBS can directly split a photon-spin product state into two constituent entangled states via transmission and reflection with high fidelity and high efficiency (up to 100 percent). This device is based on giant optical circular birefringence induced by a single spin as a result of cavity quantum electrodynamics and the spin selection rule of trion transition (Pauli blocking). The EBS is robust and it is immune to the fine structure splitting in a realistic quantum dot. This quantum device can be used for deterministically creating photon-spin, photon-photon and spin-spin entanglement as well as a single-shot quantum non-demolition measurement of a single spin. Therefore, the EBS can find wide applications in quantum information science and technology.

7 pages, 5 figures

References in corpus (12)

• The Quantum Internet
• Single-shot read-out of an individual electron spin in a quantum dot
• Optical Quantum Computing
• Entangled Photon Pairs from Semiconductor Quantum Dots
• Giant optical Faraday rotation induced by a single electron spin in a quantum dot: Applications to entangling remote spins via a single photon
• Observation of extremely slow hole spin relaxation in self-assembled quantum dots
• Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime
• Fast optical preparation, control and read-out of single quantum dot spin
• An Entanglement Filter
• The Photonic Module: an on-demand resource for photonic entanglement
• Deterministic optical quantum computer using photonic modules
• Ultrafast initialization and QND-readout of a spin qubit via control of nanodot-vacuum coupling

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