All-optical controlled phase gate in quantum dot molecules

Abstract

We propose a two-qubit optically controlled phase gate in quantum dot molecules via adiabatic passage and hole tunneling. Our proposal combines the merits of the current generation of vertically stacked self-assembled InAs quantum dots and adiabatic passage. The simulation shows an implementation of the gate with a fidelity exceeding 0.98.

References in corpus (7)

• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Ultrafast optical control of entanglement between two quantum dot spins
• Fast initialization of the spin state of an electron in a quantum dot in the Voigt configuration
• Scalable qubit architecture based on holes in quantum dot molecules
• Selective spin coupling through a single exciton
• Adiabatic optical entanglement between electron spins in separate quantum dots
• Optical Spin Initialization and Non-Destructive Measurement in a Quantum Dot Molecule

Cited by in corpus (4)

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• Weak measurement combined with quantum delayed-choice experiment and implementation in optomechanical system
• Single-particle and collective excitations in quantum wires comprised of vertically stacked quantum dots: Finite magnetic field