One-way quantum computing in a decoherence-free subspace
arXiv:0708.0969 · doi:10.1088/1367-2630/9/6/201
Abstract
We introduce a novel scheme for one-way quantum computing (QC) based on the use of information encoded qubits in an effective cluster state resource. With the correct encoding structure, we show that it is possible to protect the entangled resource from phase damping decoherence, where the effective cluster state can be described as residing in a Decoherence-Free Subspace (DFS) of its supporting quantum system. One-way QC then requires either single or two-qubit adaptive measurements. As an example where this proposal can be realized, we describe an optical lattice setup where the scheme provides robust quantum information processing. We also outline how one can adapt the model to provide protection from other types of decoherence.
9 pages, 4 figures, RevTeX4
References in corpus (37)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Quantum Mechanics helps in searching for a needle in a haystack
- Cold bosonic atoms in optical lattices
- Measurement-based quantum computation with cluster states
- Experimental One-Way Quantum Computing
- Multi-party entanglement in graph states
- Quantum Computers and Dissipation
- A Theory of Quantum Error-Correcting Codes
- Entanglement of atoms via cold controlled collisions
- Controlled Collisions for Multiparticle Entanglement of Optically Trapped Atoms
- A simple formula for the average gate fidelity of a quantum dynamical operation
- Experimental entanglement of six photons in graph states
- Preserving coherence in quantum computation by pairing quantum bits
- Complete quantum teleportation using nuclear magnetic resonance
- Theory of Decoherence-Free Fault-Tolerant Universal Quantum Computation
- Quantum process tomography of a controlled-NOT gate
- A fault-tolerant one-way quantum computer
- High-speed linear optics quantum computing using active feed-forward
- Ancilla-assisted quantum process tomography
- Stability of macroscopic entanglement under decoherence
- Decoherence-Free Subspaces and Subsystems
- Demonstration of a simple entangling optical gate and its use in Bell-state analysis
- Noise-free high-efficiency photon-number-resolving detectors
- Loss tolerance in one-way quantum computation via counterfactual error correction
- Fault-tolerant quantum computation with cluster states
- Noise thresholds for optical quantum computers
- Experimental Realization of Deutsch's Algorithm in a One-way Quantum Computer
- Defect-Suppressed Atomic Crystals in an Optical Lattice
- Quantum Bit Regeneration
- Manipulation of Single Neutral Atoms in Optical Lattices
- Experimental Construction of Optical Multi-qubit Cluster States From Bell States
- Quantum information processing with noisy cluster states
- Quantum computation in optical lattices via global laser addressing
- Natural three-qubit interactions in one-way quantum computing
- Single-qubit rotations in 2D optical lattices with multi-qubit addressing
- Experimental Investigation of Nonideal Two-qubit Quantum-state Filter by Quantum Process Tomography
- Decoherence-based exploration of d-dimensional one-way quantum computation
Cited by in corpus (10)
- Multi-photon entanglement and interferometry
- Measurement-based quantum computation
- Experimental Demonstration of Decoherence-Free One-Way Information Transfer
- Creation of resilient entangled states and a resource for measurement-based quantum computation with optical superlattices
- Control-limited perfect state transfer, quantum stochastic resonance and many-body entangling gate in imperfect qubit registers
- Preparation of Decoherence Free Cluster States with Optical Superlattices
- Experimental characterization of photonic fusion using fiber sources
- Cluster-based architecture for fault-tolerant quantum computation
- Error-correcting one-way quantum computation with global entangling gates
- Topology identification of autonomous quantum dynamical networks