Parametric coupling for superconducting qubits

Abstract

We propose a scheme to couple two superconducting charge or flux qubits biased at their symmetry points with unequal energy splittings. Modulating the coupling constant between two qubits at the sum or difference of their two frequencies allows to bring them into resonance in the rotating frame. Switching on and off the modulation amounts to switching on and off the coupling which can be realized at nanosecond speed. We discuss various physical implementations of this idea, and find that our scheme can lead to rapid operation of a two-qubit gate.

6 pages

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Cited by in corpus (74)

• Circuit Quantum Electrodynamics
• A Quantum Engineer's Guide to Superconducting Qubits
• A simple all-microwave entangling gate for fixed-frequency superconducting qubits
• Architectures for a quantum random access memory
• A universal gate for fixed-frequency qubits via a tunable bus
• Demonstration of Universal Parametric Entangling Gates on a Multi-Qubit Lattice
• Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark
• Parametrically Activated Entangling Gates Using Transmon Qubits
• Experimental Demonstration of a Robust and Scalable Flux Qubit
• Microwave-induced coupling of superconducting qubits
• Selective coupling of superconducting qubits via tunable stripline cavity
• Tuneable hopping and nonlinear cross-Kerr interactions in a high-coherence superconducting circuit
• Tunable coupling scheme for flux qubits at the optimal point
• Selective darkening of degenerate transitions demonstrated with two superconducting quantum bits
• Scalable superconducting qubit circuits using dressed states
• Circuit QED and engineering charge based superconducting qubits
• Analytical modeling of parametrically-modulated transmon qubits
• A Compound Josephson Junction Coupler for Flux Qubits With Minimal Crosstalk
• Speed limits for quantum gates in multi-qubit systems
• Analysis of parametrically driven exchange-type (iSWAP) and two-photon (bSWAP) interactions between superconducting qubits
• Entanglement of superconducting qubits via microwave fields: classical and quantum regimes
• Interqubit coupling mediated by a high-excitation-energy quantum object
• Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform
• Switchable resonant coupling of flux qubits
• Measurement-Induced Transmon Ionization
• Generation and propagation of entanglement in driven coupled-qubit systems
• Quantum control of an oscillator using stimulated nonlinearity
• Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators
• Floquet quantum simulation with superconducting qubits
• Coexistence of multi-photon processes and longitudinal couplings in superconducting flux qubits
• High-fidelity quantum operations on superconducting qubits in the presence of noise
• Coupling superconducting flux qubits at optimal point via dynamic decoupling with the quantum bus
• Floquet-engineered enhancement of coherence times in a driven fluxonium qubit
• Accurate methods for the analysis of strong-drive effects in parametric gates
• Generalized switchable coupling for superconducting qubits using double resonance
• Spectroscopy of three strongly coupled flux qubits
• Driven dynamics and rotary echo of a qubit tunably coupled to a harmonic oscillator
• Decoherence times of universal two-qubit gates in the presence of broad-band noise
• Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubits
• Spectroscopy of superconducting charge qubits coupled by a Josephson inductance
• Tunable coupling of qubits: nonadiabatic corrections
• On the generation of multipartite entangled states in Josephson architectures
• Selective darkening of degenerate transitions for implementing quantum controlled-NOT gates
• Switchable coupling for superconducting qubits using double resonance in the presence of crosstalk
• Strong parametric dispersive shifts in a statically decoupled multi-qubit cavity QED system
• Native approach to controlled-Z gates in inductively coupled fluxonium qubits
• Switchable coupling between charge and flux qubits
• Driven Multiphoton Qubit-Resonator Interactions
• Cavity-mediated entanglement of parametrically driven spin qubits via sidebands
• Robust creation of entangled states of two coupled flux qubits via dynamic control of the transition frequencies
• Fast parametric two-qubit gate for highly detuned fixed-frequency superconducting qubits using a double-transmon coupler
• Universal stabilization of single-qubit states using a tunable coupler
• Controllable Coupling in Phase-Coupled Flux Qubits
• Experimentally Realizable C-NOT Gate in a Flux Qubit/Resonator System
• Simulating systems of itinerant spin-carrying particles using arrays of superconducting qubits and resonators
• Broadband noise decoherence in solid-state complex architectures
• Enhancing dissipative cat-state generation via nonequilibrium pump fields
• Efficient two-qutrit gates in superconducting circuits using parametric coupling
• Universal Quantum Degeneracy Point for Superconducting Qubits
• Protecting Superconducting Qubits with Universal Quantum Degeneracy Point
• Entanglement control of two-level atoms in dissipative cavities
• Quantum Simulation of Pairing Hamiltonians with Nearest-Neighbor Interacting Qubits
• Long-range and selective coupler for superconducting flux qubits
• The resource cost of large scale quantum computing
• Microwave driven arbitrary coupling between trapped charge resonances in a silicon single electron transistor
• Flux control of superconducting qubits at dynamical sweet spots
• Flux-qubit and the law of angular momentum conservation
• Spectrum analysis with parametrically modulated transmon qubits
• Optimizing the frequency positioning of tunable couplers in a circuit QED processor to mitigate spectator effects on quantum operations
• Concurrent Fermionic Simulation Gate
• Resonant Coupling Parameter Estimation with Superconducting Qubits
• Solving the inverse parametric problem
• The perfect entangler spectrum as a tool to analyze crosstalk
• Engineered Robustness for Nonadiabatic Geometric Quantum Gates