High fidelity transfer of an arbitrary quantum state between harmonic oscillators

Abstract

It is shown that by switching a specific time-dependent interaction between a harmonic oscillator and a transmission line (a waveguide, an optical fiber, etc.) the quantum state of the oscillator can be transferred into that of another oscillator coupled to the distant other end of the line, with a fidelity that is independent of the initial state of both oscillators. For a transfer time $T$, the fidelity approaches 1 exponentially in $\gamma T$ where $\gamma$ is a characteristic damping rate. Hence, a good fidelity is achieved even for a transfer time of a few damping times. Some implementations are discussed.

4 pages, 1 figure

References in corpus (8)

• Quantum state transfer and entanglement distribution among distant nodes in a quantum network
• Quantum Communication Through an Unmodulated Spin Chain
• Quantum Networking with Optical Fibres
• Perfect State Transfer, Effective Gates and Entanglement Generation in Engineered Bosonic and Fermionic Networks
• Quantum Speed Limit for Perfect State Transfer in One Dimension
• Quantum state transfer in arrays of flux qubits
• Long-Distance Quantum Communication with Neutral Atoms
• Mesoscopic continuous and discrete channels for quantum information transfer

Cited by in corpus (15)

• Microwave photonics with superconducting quantum circuits
• Phonon networks with SiV centers in diamond waveguides
• Catching Shaped Microwave Photons with 99.4% Absorption Efficiency
• Intracity quantum communication via thermal microwave networks
• High-efficiency quantum state transfer and quantum memory using a mechanical oscillator
• Flying microwave qubits with nearly perfect transfer efficiency
• Observation of broadband entanglement in microwave radiation from a single time-varying boundary condition
• Robust quantum state transfer using tunable couplers
• Spin Star as Switch for Quantum Networks
• Proposal of a two-qubit quantum phase gate for quantum photonic integrated circuits
• Input-output theory for superconducting and photonic circuits that contain weak retro-reflections and other weak pseudo-cavities
• Universal time-dependent control scheme for realizing arbitrary linear bosonic transformations
• Perfect transfer of quantum states in a network of harmonic oscillators
• Quantum states transfer by the analogous Bell states
• Prediction-retrodiction measurements for teleportation and conditional state transfer