Decoherence-Free Quantum Information Processing with Four-Photon Entangled States

Abstract

Decoherence-free states protect quantum information from collective noise, the predominant cause of decoherence in current implementations of quantum communication and computation. Here we demonstrate that spontaneous parametric down-conversion can be used to generate four-photon states which enable the encoding of one qubit in a decoherence-free subspace. The immunity against noise is verified by quantum state tomography of the encoded qubit. We show that particular states of the encoded qubit can be distinguished by local measurements on the four photons only.

4 pages, 4 eps figures, revtex4

References in corpus (16)

• Mixed State Entanglement and Quantum Error Correction
• Decoherence Free Subspaces for Quantum Computation
• Noiseless Quantum Codes
• Quantum Computers and Dissipation
• A Theory of Quantum Error-Correcting Codes
• Preserving coherence in quantum computation by pairing quantum bits
• Theory of Decoherence-Free Fault-Tolerant Universal Quantum Computation
• Robust polarization-based quantum key distribution over collective-noise channel
• Four Photon Entanglement from Down Conversion
• Experimental observation of four-photon entanglement from down-conversion
• Classical and quantum communication without a shared reference frame
• A Magnetic Resonance Realization of Decoherence-Free Quantum Computation
• Implementation of Universal Control on a Decoherence-Free Qubit
• Protecting Quantum Information Encoded in Decoherence Free States Against Exchange Errors
• Bell's theorem without inequalities and without alignments
• Greenberger-Horne-Zeilinger-like proof of Bell's theorem involving observers who do not share a reference frame

Cited by in corpus (94)

• The Security of Practical Quantum Key Distribution
• Entanglement detection
• Multi-photon entanglement and interferometry
• Reference frames, superselection rules, and quantum information
• Complete experimental toolbox for alignment-free quantum communication
• Non-Adiabatic Holonomic Quantum Computation in Decoherence-Free Subspaces
• Experimental quantum-enhanced estimation of a lossy phase shift
• Universal Lindblad equation for open quantum systems
• Holonomic quantum computation in decoherence-free subspaces
• Geometry and response of Lindbladians
• Experimental observation of an entire family of four-photon entangled states
• Realization of Universal Ion Trap Quantum Computation with Decoherence Free Qubits
• Universal quantum computation in deocoherence-free subspace with neutral atoms
• Experimental demonstration of a quantum protocol for Byzantine agreement and liar detection
• Quantum communication using a bounded-size quantum reference frame
• Six-qubit permutation-based decoherence-free orthogonal basis
• Experimental quantum coding against photon loss error
• Entanglement Detection in Optical Lattices of Bosonic Atoms with Collective Measurements
• Characterizing multipartite entanglement with moments of random correlations
• Quantum states made to measure
• Local expansion of photonic W state using a polarization dependent beamsplitter
• Multiphoton entanglement through a Bell multiport beam splitter
• Genuine three-partite entangled states with a local hidden variable model
• Hierarchical Joint Remote State Preparation in Noisy Environment
• QUBIT4MATLAB V3.0: A program package for quantum information science and quantum optics for MATLAB
• Experimental implementation of a four-player quantum game
• Experimental filtering of two-, four-, and six-photon singlets from single PDC source
• Robust photonic entanglement distribution via state-independent encoding onto decoherence-free subspace
• Frobenius-norm-based measures of quantum coherence and asymmetry
• Cavity QED implementation of non-adiabatic holonomies for universal quantum gates in decoherence-free subspaces with nitrogen-vacancy centers
• Blind quantum computation over a collective-noise channel
• Optimal measurements for relative quantum information
• Bell's inequalities with realistic noise for polarization-entangled photons
• A comparative study of protocols for secure quantum communication under noisy environment: single-qubit-based protocols versus entangled-state-based protocols
• Direct generation of time-energy-entangled W triphotons in atomic vapor
• Experimental multi-location remote state preparation
• Entanglement in eight-qubit graph states
• Experimental Demonstration of Decoherence-Free One-Way Information Transfer
• Which verification qubits perform best for secure communication in noisy channel?
• Discriminating multi-partite entangled states
• On multiparticle W states, their implementations and applications in quantum information problems
• Classification of GHZ-type, W-type and GHZ-W-type multiqubit entanglements
• Concurrence of quasi pure quantum states
• Generation of a High-Visibility Four-Photon Entangled State and Realization of a Four-Party Quantum Communication Complexity Scenario
• Entanglement production and decoherence-free subspace of two single-mode cavities embedded in a common environment
• Decay and storage of multiparticle entangled states of atoms in collective thermostat
• Entanglement in highly symmetric multipartite quantum states
• Experimental Demonstration of Robust Bidirectional Quantum Optical Communications
• Efficient decoherence-free entanglement distribution over lossy quantum channels
• Which multiphoton states are related via linear optics?
• Effects of DM and KSEA interactions on entanglement, Fisher and Wigner-Yanase information correlations of two XYZ-Heisenberg-qubit states under a magnetic field
• Field-theoretical approach to open quantum systems and the Lindblad equation
• Decoherence-free quantum-information processing using dipole-coupled qubits
• A simple analytical expression of quantum Fisher and Skew information and their dynamics under decoherence channels
• Robustness of quantum communication based on a decoherence-free subspace using a counter-propagating weak coherent light pulse
• Robust implementations of Quantum Repeaters
• Mixed Qubit Cannot Be Universally Broadcast
• Relative states, quantum axes and quantum references
• Polarization and frequency disentanglement of photons via stochastic polarization mode dispersion
• Many-body singlets by dynamic spin polarization
• Accessible quantification of multiparticle entanglement
• A Study on the Noise Threshold of Fault-tolerant Quantum Error Correction
• Local Pauli stabilizers of symmetric hypergraph states
• Quantum Gloves
• Werner state structure and entanglement classification
• Kak's three-stage protocol of secure quantum communication revisited: Hitherto unknown strengths and weaknesses of the protocol
• Using continuous measurement to protect a universal set of quantum gates within a perturbed decoherence-free subspace
• Decoherence-free quantum information in the presence of dynamical evolution
• Decoherence-free subspaces and subsystems for a collectively depolarizing bosonic channel
• Limitations of practical multi-photon decoherence-free states
• Symmetric construction of reference-frame-free qudits
• Quantum key distribution based on orthogonal state encoding
• Immunity of information encoded in decoherence-free subspaces to particle loss
• Quantum entanglement and Bell violation of two coupled cavity fields in dissipative environment
• Hybrid noiseless subsystems for quantum communication over optical fibers
• Effects of imperfect noise correlations on decoherence-free subsystems: SU(2) diffusion model
• Entanglement classes of symmetric Werner states
• Lindbladians with multiple steady states: theory and applications
• Robustness of Decoherence-Free States for Charge Qubits under Local Non-uniformity
• Extracting an entangled photon pair from collectively decohered pairs at a telecommunication wavelength
• Multiparticle singlet states cannot be maximally entangled for the bipartitions
• Continuous dynamical decoupling and decoherence-free subspaces for qubits with tunable interaction
• Experimental demonstration of robust entanglement distribution over reciprocal noisy channels assisted by a counter-propagating classical reference light
• Protecting entangled states of two ions by engineering reservoir
• Relative information encoded in the degree of entanglement to discriminate bipartite states
• Quantum channel for light based on integrals of motion
• The Effect of Local Structure and Non-uniformity on Decoherence-Free States of Charge Qubits
• Supersinglets can be self-tested with perfect quantum strategies
• Bell's theorem without inequalities and without unspeakable information
• Experimental Quantum Error-Free Transmission
• Information-Theoretic Analysis of Weak Measurements and Their Reversal
• Non-adiabatic holonomic quantum computation in linear system-bath coupling
• Error-immune quantum communication
• A quantum repeater based on decoherence free subspaces