Robust quantum state transfer using tunable couplers
arXiv:1411.7103 · doi:10.1103/PhysRevB.91.144509
Abstract
We analyze the transfer of a quantum state between two resonators connected by a superconducting transmission line. Nearly perfect state-transfer efficiency can be achieved by using adjustable couplers and destructive interference to cancel the back-reflection into the transmission line at the receiving coupler. We show that the transfer protocol is robust to parameter variations affecting the transmission amplitudes of the couplers. We also show that the effects of Gaussian filtering, pulse-shape noise, and multiple reflections on the transfer efficiency are insignificant. However, the transfer protocol is very sensitive to frequency mismatch between the two resonators. Moreover, the tunable coupler we considered produces time-varying frequency detuning caused by the changing coupling. This detuning requires an active frequency compensation with an accuracy better than 90% to yield the transfer efficiency above 99%.
25 pages, 17 figures; published version
References in corpus (38)
- The Quantum Internet
- Long-distance quantum communication with atomic ensembles and linear optics
- Surface codes: Towards practical large-scale quantum computation
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- A simple formula for the average gate fidelity of a quantum dynamical operation
- Measurement-Induced Entanglement for Excitation Stored in Remote Atomic Ensembles
- Qubit architecture with high coherence and fast tunable coupling
- Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics
- Deterministic entanglement of superconducting qubits by parity measurement and feedback
- Realization of Deterministic Quantum Teleportation with Solid State Qubits
- Observation of measurement-induced entanglement and quantum trajectories of remote superconducting qubits
- Implementing a strand of a scalable fault-tolerant quantum computing fabric
- Tracking Photon Jumps with Repeated Quantum Non-Demolition Parity Measurements
- Electro-Optic Modulation of Single Photons
- Mapping the optimal route between two quantum states
- Dynamic quantum Kerr effect in circuit quantum electrodynamics
- Controlled catch and release of microwave photon states
- Long Distance, Unconditional Teleportation of Atomic States Via Complete Bell State Measurements
- Microwave-controlled generation of shaped single photons in circuit quantum electrodynamics
- Flux Qubits with Long Coherence Times for Hybrid Quantum Circuits
- A superconducting qubit with Purcell protection and tunable coupling
- Catching Shaped Microwave Photons with 99.4% Absorption Efficiency
- Demonstration of a Tuneable Coupler for Superconducting Qubits Using Coherent, Time Domain, Two-Qubit Operations
- Quantum-state transfer from an ion to a photon
- Improving quantum gate fidelities by using a qubit to measure microwave pulse distortions
- Josephson parametric phase-locked oscillator and its application to dispersive readout of superconducting qubits
- RFSQUID-Mediated Coherent Tunable Coupling Between a Superconducting Phase Qubit and a Lumped Element Resonator
- Storage and on-demand release of microwaves using superconducting resonators with tunable coupling
- Flying microwave qubits with nearly perfect transfer efficiency
- Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer
- Long-Distance Quantum Communication with Neutral Atoms
- Coherent Control of a Superconducting Qubit with Dynamically Tunable Qubit-cavity Coupling
- Tunable-Cavity QED with Phase Qubits
- Catch-Disperse-Release Readout for Superconducting Qubits
- High fidelity transfer of an arbitrary quantum state between harmonic oscillators
- Simple quantum error detection and correction for superconducting qubits
Cited by in corpus (14)
- Microwave photonics with superconducting quantum circuits
- Deterministic multi-qubit entanglement in a quantum network
- Superconducting quantum node for entanglement and storage of microwave radiation
- Universal holonomic quantum gates in decoherence-free subspace on superconducting circuits
- Violating Bell's inequality with remotely-connected superconducting qubits
- Intracity quantum communication via thermal microwave networks
- Quantum Bayesian approach to circuit QED measurement with moderate bandwidth
- Deterministic quantum teleportation between distant superconducting chips
- Universal controlled-phase gate with cat-state qubits in circuit QED
- Circuit QED: single-step realization of a multiqubit controlled phase gate with one microwave photonic qubit simultaneously controlling microwave photonic qubits
- Resonant and off-resonant microwave signal manipulation in coupled superconducting resonators
- Single-step transfer or exchange of multipartite quantum entanglement with minimum resources
- Delayed transfer of entanglement to initially populated qubits
- On-demand shaped photon emission based on a parametrically modulated qubit