Tunable coupling in circuit quantum electrodynamics with a superconducting V-system

Abstract

Recent progress in superconducting qubits has demonstrated the potential of these devices for the future of quantum information processing. One desirable feature for quantum computing is independent control of qubit interactions as well as qubit energies. We demonstrate a new type of superconducting charge qubit that has a V-shaped energy spectrum and uses quantum interference to provide independent control over the qubit energy and dipole coupling to a superconducting cavity. We demonstrate dynamic access to the strong coupling regime by tuning the coupling strength from less than 200 kHz to more than 40 MHz. This tunable coupling can be used to protect the qubit from cavity-induced relaxation and avoid unwanted qubit-qubit interactions in a multi-qubit system.

5 pages, 4 figures

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Cited by in corpus (108)

• Circuit Quantum Electrodynamics
• A Quantum Engineer's Guide to Superconducting Qubits
• Microwave photonics with superconducting quantum circuits
• Qubit architecture with high coherence and fast tunable coupling
• A simple all-microwave entangling gate for fixed-frequency superconducting qubits
• A tunable coupling scheme for implementing high-fidelity two-qubit gates
• A universal gate for fixed-frequency qubits via a tunable bus
• Designing frequency-dependent relaxation rates and Lamb shift for a giant artificial atom
• Controlled catch and release of microwave photon states
• Dynamic quantum Kerr effect in circuit quantum electrodynamics
• Microwave-controlled generation of shaped single photons in circuit quantum electrodynamics
• Engineering the Level Structure of a Giant Artificial Atom in Waveguide Quantum Electrodynamics
• Suppression of photon shot noise dephasing in a tunable coupling superconducting qubit
• Non-Abelian $SU(2)$ Lattice Gauge Theories in Superconducting Circuits
• Tuneable hopping and nonlinear cross-Kerr interactions in a high-coherence superconducting circuit
• Quantum theory of a bandpass Purcell filter for qubit readout
• Generating entanglement between microwave photons and qubits in multiple cavities coupled by a superconducting qutrit
• Microwave-Induced Amplitude and Phase Tunable Qubit-Resonator Coupling in Circuit Quantum Electrodynamics
• Digital-Analog Quantum Simulations with Superconducting Circuits
• Gatemon Benchmarking and Two-Qubit Operation
• Fermion-Fermion Scattering in Quantum Field Theory with Superconducting Circuits
• Time evolution techniques for detectors in relativistic quantum information
• High contrast qubit interactions using multimode cavity QED
• Charting the circuit QED design landscape using optimal control theory
• Tunable and Switchable Coupling Between Two Superconducting Resonators
• Universal quantum gates on microwave photons assisted by circuit quantum electrodynamics
• Many-Body Interactions with Tunable-Coupling Transmon Qubits
• Fast universal quantum gates on microwave photons with all-resonance operations in circuit QED
• Engineering Dynamical Sweet Spots to Protect Qubits from 1/$f$ Noise
• Relativistic Motion with Superconducting Qubits
• Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer
• Dynamical correlation functions and the quantum Rabi model
• The upside of noise: engineered dissipation as a resource in superconducting circuits
• Quantum Rabi model for N-state atoms
• Quantum information processing on nitrogen-vacancy ensembles with the local resonance assisted by circuit QED
• Coherent Control of a Superconducting Qubit with Dynamically Tunable Qubit-cavity Coupling
• Parity-dependent State Engineering and Tomography in the ultrastrong coupling regime
• Preparation of Subradiant States using Local Qubit Control in Circuit QED
• Exploring Interacting Quantum Many-Body Systems by Experimentally Creating Continuous Matrix Product States in Superconducting Circuits
• Digital-analog quantum simulation of generalized Dicke models with superconducting circuits
• Topological two-dimensional Floquet lattice on a single superconducting qubit
• Semiconductor-inspired design principles for superconducting quantum computing
• Large-scale GHZ states through topologically protected zero-energy mode in a superconducting qutrit-resonator chain
• One-photon Solutions to Multiqubit Multimode quantum Rabi model
• Universal fluctuations and squeezing in generalized Dicke model near the superradiant phase transition
• Tunable-Cavity QED with Phase Qubits
• Greenberger-Horne-Zeilinger generation protocol for N superconducting transmon qubits capacitively coupled to a quantum bus
• Entanglement of superconducting qubits via acceleration radiation
• Accelerating adiabatic protocols for entangling two qubits in circuit QED
• Driven dynamics and rotary echo of a qubit tunably coupled to a harmonic oscillator
• A scanning transmon qubit for strong coupling circuit quantum electrodynamics
• Superconducting grid-bus surface code architecture for hole-spin qubits
• Selective darkening of degenerate transitions for implementing quantum controlled-NOT gates
• Quantum phase transition in a multi-connected superconducting Jaynes-Cummings lattice
• Strong parametric dispersive shifts in a statically decoupled multi-qubit cavity QED system
• A V-shape superconducting artificial atom based on two inductively coupled transmons
• Simultaneously exciting two atoms with photon-mediated Raman interaction
• Quantum chemistry and charge transport in biomolecules with superconducting circuits
• Dynamical Lamb effect versus dissipation in superconducting quantum circuits
• Reconstructing the quantum state of oscillator networks with a single qubit
• Spatially extended Unruh-DeWitt detectors for relativistic quantum information
• Deterministic generations of NOON states via shortcuts to adiabaticity
• Entanglement through qubit motion and the dynamical Casimir effect
• Weakly Flux-Tunable Superconducting Qubit
• Perturbative diagonalization for time-dependent strong interactions
• Quantum power boost in a nonstationary cavity-QED quantum heat engine
• Collective Quantum Beats from Distant Multilevel Emitters
• Parity-Engineered Light-Matter Interaction
• Simulating Zeno physics by quantum quench with superconducting circuits
• Oscillator state reconstruction via tunable qubit coupling in Markovian environments
• Coherent frequency conversion in a superconducting artificial atom with two internal degrees of freedom
• $Z_N$ symmetric chiral Rabi model: a new $N$-level system
• Quantum state preparation by a shaped photon pulse in one-dimensional continuum
• Quantum teleportation with continuous measurements
• Hamiltonian engineering for robust quantum state transfer and qubit readout in cavity QED
• Analytical comparison of the first- and second-order resonances for implementation of the dynamical Casimir effect in nonstationary circuit QED
• Site-wise manipulations and Mott insulator-superfluid transition of interacting photons using superconducting circuit simulators
• Quantum phase transition in a multiconnected Jaynes-Cummings lattice
• Parametrically driven hybrid qubits-photon systems: dissipation-induced quantum entanglement and photon production from vacuum
• Non-linear coupling between the two oscillation modes of a dc-SQUID
• Parametric four-wave mixing toolbox for superconducting resonators
• Efficient decoupling of a non-linear qubit mode from its environment
• Anti-Dynamical Casimir Effect as a Resource for Work Extraction
• Three-qubit direct dispersive parity measurement with Tunable Coupling Qubits
• Suppressed crosstalk between two-junction superconducting qubits with mode-selective exchange coupling
• 1- and 3-photon dynamical Casimir effects using nonstationary cyclic qutrit
• Tunable coupling between a superconducting resonator and an artificial atom
• Qubit Motion as a Microscopic Model for the Dynamical Casimir Effect
• Unified linear response theory of quantum electronic circuits
• Fast ZZ-Free Entangling Gates for Superconducting Qubits Assisted by a Driven Resonator
• Tunable interaction of superconducting flux qubits in circuit QED
• Measurement-induced entanglement of two transmon qubits by a single photon
• Fluctuations and photon statistics in quantum metamaterial near the superradiant transition
• Deterministic single-photon source in the ultrastrong coupling regime
• Tunable $\Lambda$-type system made of a superconducting qubit pair
• Mott insulator-superfluid phase transition in a detuned multi-connected Jaynes-Cummings lattice
• Multi-qubit Quantum Rabi Model and Multi-partite Entangled States in a Circuit QED System
• Optimizing for periodicity: a model-independent approach to flux crosstalk calibration for superconducting circuits
• Tuning and Amplifying the Interactions in Superconducting Quantum Circuits with Subradiant Qubits
• Characterisation of spatial charge sensitivity in a multi-mode superconducting qubit
• Control over few photon pulses by a time-periodic modulation of the photon-emitter coupling
• Localised Systems in Relativistic Quantum Information
• Optimizing the frequency positioning of tunable couplers in a circuit QED processor to mitigate spectator effects on quantum operations
• Resilient superconducting-element design with genetic algorithms
• Efficient steady state entanglement generation in strongly driven coupled qubits
• Two-photon exchange interaction from Dicke Hamiltonian under parametric modulation
• Quantum direct cause across the Cherenkov threshold in circuit QED
• Transport of pseudothermal photons through an anharmonic cavity