Using quantum state protection via dissipation in a quantum-dot molecule to solve the Deutsch problem
arXiv:1203.4444 · doi:10.1103/PhysRevA.85.032323
Abstract
The wide set of control parameters and reduced size scale make semiconductor quantum dots attractive candidates to implement solid-state quantum computation. Considering an asymmetric double quantum dot coupled by tunneling, we combine the action of a laser field and the spontaneous emission of the excitonic state to protect an arbitrary superposition state of the indirect exciton and ground state. As a by-product we show how to use the protected state to solve the Deutsch problem.
8 pages, 1 figure, 2 tables
References in corpus (27)
- Quantum entanglement
- Decoherence Free Subspaces for Quantum Computation
- Dynamical Decoupling of Open Quantum Systems
- Noiseless Quantum Codes
- Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
- Preparation of Entangled States by Quantum Markov Processes
- Experimental realization of a quantum algorithm
- Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
- Implementation of a Quantum Algorithm to Solve Deutsch's Problem on a Nuclear Magnetic Resonance Quantum Computer
- Using Parity Kicks for Decoherence Control
- Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots
- Coherent control of tunneling in a quantum dot molecule
- Spin-based all-optical quantum computation with quantum dots: understanding and suppressing decoherence
- Control of Spin Dynamics of Excitons in Nanodots for Quantum Operations
- Quantum memories based on engineered dissipation
- Experimental application of decoherence-free subspaces in a quantum-computing algorithm
- Room-temperature implementation of the Deutsch-Jozsa algorithm with a single electronic spin in diamond
- Deutsch-Jozsa algorithm as a test of quantum computation
- Control of Decoherence and Relaxation by Frequency Modulation of Heat Bath
- Robust states in semiconductor quantum dot molecules
- Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot
- Nonadiabatic coherent evolution of two-level systems under spontaneous decay
- Optically-controlled logic gates for two spin qubits in vertically-coupled quantum dots
- Excited State Quantum Couplings and Optical Switching of an Artificial Molecule
- Phonon effects on the radiative recombination of excitons in double quantum dots
- Decoherence-free evolution of time-dependent superposition states of two-level systems and thermal effects
- Protecting entangled states of two ions by engineering reservoir