Hybrid Quantum Computation in Quantum Optics

Abstract

We propose a hybrid quantum computing scheme where qubit degrees of freedom for computation are combined with quantum continuous variables for communication. In particular, universal two-qubit gates can be implemented deterministically through qubit-qubit communication, mediated by a continuous-variable bus mode ("qubus"), without direct interaction between the qubits and without any measurement of the qubus. The key ingredients are controlled rotations of the qubus and unconditional qubus displacements. The controlled rotations are realizable through typical atom-light interactions in quantum optics. For such interactions, our scheme is universal and works in any regime, including the limits of weak and strong nonlinearities.

5 pages, 2 figures

References in corpus (15)

• Quantum information with continuous variables
• Review article: Linear optical quantum computing
• Quantum state transfer and entanglement distribution among distant nodes in a quantum network
• Multi-particle entanglement of hot trapped ions
• Entanglement and quantum computation with ions in thermal motion
• Efficient high-fidelity quantum computation using matter qubits and linear optics
• Proposal for teleportation of an atomic state via cavity decay
• Efficient engineering of multi-atom entanglement through single-photon detections
• Repeat-Until-Success Quantum Computing
• Robust creation of entanglement between ions in spatially separate cavities
• Quantum Computation by Communication
• Hybrid quantum repeater based on dispersive CQED interactions between matter qubits and bright coherent light
• Quantum computation using weak nonlinearities: robustness against decoherence
• Simulation of many-body interactions by conditional geometric phases
• Remarks on the Atiyah-Hitchin metric

Cited by in corpus (42)

• Continuous variable quantum information: Gaussian states and beyond
• Remote creation of hybrid entanglement between particle-like and wave-like optical qubits
• Encoding a Qubit into a Cavity Mode in Circuit-QED using Phase Estimation
• Quantum Repeaters using Coherent-State Communication
• Rate analysis for a hybrid quantum repeater
• Ancilla-Driven Universal Blind Quantum Computation
• The efficiencies of generating cluster states with weak non-linearities
• Quantum repeaters and quantum key distribution: analysis of secret key rates
• Engineering optical hybrid entanglement between discrete- and continuous-variable states
• Quantum teleportation between "particle-like" and "field-like" qubits using hybrid entanglement under decoherence effects
• Highly Efficient Processing Multi-photon States
• Classifying, quantifying, and witnessing qudit-qumode hybrid entanglement
• Efficient measurement-based quantum computing with continuous-variable systems
• Time-frequency as quantum continuous variables
• Reduce, reuse, recycle, for robust cluster state generation
• All-optical quantum computing using cubic phase gates
• Ancilla-based quantum simulation
• Hybrid quantum repeater with encoding
• Realizing quantum linear regression with auxiliary qumodes
• Pulse shaping by coupled-cavities: Single photons and qudits
• Measurement-Based Linear Optics
• Layer by layer generation of cluster states
• Scheme for the generation of hybrid entanglement between time-bin and wavelike encodings
• Quantum teleportation of hybrid qubits and single-photon qubits using Gaussian resources
• Quasi-Bell states in a strongly coupled qubit-oscillator system and their delocalization in the phase space
• Hybrid quantum computing with ancillas
• Quantum simulation of discrete linear dynamical systems and simple iterative methods in linear algebra via Schrodingerisation
• Performance of Quantum Networks Using Heterogeneous Link Architectures
• Generation of entanglement via squeezing on a tripartite-optomechanical system
• Wavelength conversion for single-photon polarization qubits through continuous variable quantum teleportation
• Entanglement Generation by Communication using Phase-Squeezed Light with Photon Loss
• Multiple multi-control unitary operations: implementation and applications
• Entanglement-fidelity relations for inaccurate ancilla-driven quantum computation
• CHSH Bell Tests For Optical Hybrid Entanglement
• Universal DV-CV interaction mechanism for deterministic generation of entangled hybridity
• Evolution of a hybrid micro-macro entangled state of the qubit-oscillator system via the generalized rotating wave approximation
• Unifying Sørensen-Mølmer gate and Milburn gate with an optomechanical example
• Quantum Rabi interferometry of motion and radiation
• Characterizing And Exploiting Hybrid Entanglement
• Implementation of quantum teleportation protocol by superposition of displacement operators with absolute equal but opposite in sign amplitudes
• Single-shot conditional displacement gate between a trapped atom and traveling light
• Improving photon detector efficiency using a high-fidelity optical CNOT gate