Measurement-based approach to entanglement generation in coupled quantum dots
arXiv:0801.2873 · doi:10.1103/PhysRevB.79.035315
Abstract
Measurements provide a novel mechanism for generating the entanglement resource necessary for performing scalable quantum computation. Recently, we proposed a method for performing parity measurements in a coupled quantum dot system. In this paper we generalise this scheme and perform a comprehensive analytic and numerical study of environmental factors. We calculate the effects of possible error sources including non-ideal photon detectors, ineffective spin-selective excitation and dot distinguishability (both spatial and spectral). Furthermore, we present an experimental approach for verifying the success of the parity measurement.
References in corpus (15)
- Quantum Computation with Quantum Dots
- Single-shot read-out of an individual electron spin in a quantum dot
- Efficient high-fidelity quantum computation using matter qubits and linear optics
- Creation of entangled states of distant atoms by interference
- Classical simulation of noninteracting-fermion quantum circuits
- Entanglement Detection in the Stabilizer Formalism
- Repeat-Until-Success Quantum Computing
- Charge detection enables free-electron quantum computation
- Optical Schemes for Quantum Computation in Quantum Dot Molecules
- Electro-optical properties of semiconductor quantum dots: Application to quantum information processing
- An entangled two photon source using biexciton emission of an asymmetric quantum dot in a cavity
- Effect of Exchange Interaction on Spin Dephasing in a Double Quantum Dot
- Quantum Computing with Spin Qubits Interacting Through Delocalized Excitons: Overcoming Hole Mixing
- All-Optical Measurement Based QIP in Quantum Dots
- Atomic cluster state build up with macroscopic heralding