Creating excitonic entanglement in quantum dots through the optical Stark effect

Abstract

We show that two initially non-resonant quantum dots may be brought into resonance by the application of a single detuned laser. This allows for control of the inter-dot interactions and the generation of highly entangled excitonic states on the picosecond timescale. Along with arbitrary single qubit manipulations, this system would be sufficient for the demonstration of a prototype excitonic quantum computer.

4 pages, 3 figures; published version, figure 3 improved, corrections to RWA derived

References in corpus (9)

• Mixed State Entanglement and Quantum Error Correction
• Quantum repeaters based on entanglement purification
• Overhead and noise threshold of fault-tolerant quantum error correction
• Maximizing the entanglement of two mixed qubits
• Natural two-qubit gate for quantum computation using the XY interaction
• Entangled Bell and GHZ states of excitons in coupled quantum dots
• Exploiting exciton-exciton interactions in semiconductor quantum dots for quantum-information processing
• Optical Schemes for Quantum Computation in Quantum Dot Molecules
• Electro-optical properties of semiconductor quantum dots: Application to quantum information processing

Cited by in corpus (8)

• Quantum dot Rabi rotations beyond the weak exciton-phonon coupling regime
• Anticrossings in Foerster Coupled Quantum Dots
• Dressed excitonic states and quantum interference in a three-level quantum dot ladder system
• Entanglement distribution for a practical quantum-dot-based quantum processor architecture
• Dynamics of Coupled Qubits Interacting with an Off-Resonant Cavity
• An unconventional geometric phase gate with two nonresonant quantum dots trapped in a photonic crystal cavity
• Excitonic entanglement of protected states in quantum dot molecules
• Dissipative Exciton Transfer in Donor-Bridge-Acceptor Systems: Numerical Renormalization Group Calculation of Equilibrium Properties