Coupling two charge qubits via a superconducting resonator operating in the resonant and dispersive regimes
arXiv:2012.14129 · doi:10.1103/PhysRevA.106.032608
Abstract
A key challenge for semiconductor quantum-dot charge qubits is the realization of long-range qubit coupling and performing high-fidelity gates based on it. Here, we describe a new type of charge qubit formed by an electron confined in a triple-quantum-dot system, enabling single and two-qubit gates working in the dipolar and quadrupolar detuning sweet spots. We further present the form for the long-range dipolar coupling between the charge qubit and the superconducting resonator. Based on the hybrid system composed of the qubits and the resonator, we present two types of entangling gates: the dynamical iSWAP gate and holonomic entangling gate, which are operating in the dispersive and resonant regimes, respectively. We find that the fidelity for the iSWAP gate can reach fidelity higher than 99\% for the noise level typical in experiments. Meanwhile, the fidelity for the holonomic gate can surpass 98\% if the anharmonicity in the resonator is large enough. Our proposal offers an alternative useful way to build up high-fidelity quantum computation for charge qubits in semiconductor quantum dot.
arXiv comment9 pages, 5 figures
References in corpus (35)
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- Quantum information processing with circuit quantum electrodynamics
- Computing with spin qubits at the surface code error threshold
- Fast universal quantum control above the fault-tolerance threshold in silicon
- Non-adiabatic holonomic quantum computation
- Quantum Coherence in a One-Electron Semiconductor Charge Qubit
- Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED
- Electrometry Using Coherent Exchange Oscillations in a Singlet-Triplet-Qubit
- High Kinetic Inductance Superconducting Nanowire Resonators for Circuit QED in a Magnetic Field
- Measuring and Suppressing Quantum State Leakage in a Superconducting Qubit
- Precision tomography of a three-qubit donor quantum processor in silicon
- Mesoscopic Cavity Quantum Electrodynamics with Quantum Dots
- Strong Coupling Cavity QED with Gate-Defined Double Quantum Dots Enabled by a High Impedance Resonator
- Microwave-driven coherent operations of a semiconductor quantum dot charge qubit
- High-fidelity quantum gates in Si/SiGe double quantum dots
- Robust quantum gates for singlet-triplet spin qubits using composite pulses
- High-contrast ZZ interaction using superconducting qubits with opposite-sign anharmonicity
- Geometric phases in quantum information
- Nonadiabatic geometric quantum computation with parametrically tunable coupling
- Entanglement generation in superconducting qubits using holonomic operations
- Microwave photon-mediated interactions between semiconductor qubits
- Implementing universal nonadiabatic holonomic quantum gates with transmons
- Coherent microwave photon mediated coupling between a semiconductor and a superconductor qubit
- A decoherence-free subspace in a charge quadrupole qubit
- Entangling distant resonant exchange qubits via circuit quantum electrodynamics
- Coherent long-distance spin-qubit-transmon coupling
- Fast holonomic quantum computation on superconducting circuits with optimal control
- State-conditional coherent charge qubit oscillations in a Si/SiGe quadruple quantum dot
- Fast holonomic quantum computation based on solid-state spins with all-optical control
- Strong photon coupling to the quadrupole moment of an electron in solid state
- Correlated spectrum of distant semiconductor qubits coupled by microwave photons
- Realization of a Qubit: energy spectroscopy and coherence
- High-fidelity single-qubit gates in a strongly driven quantum dot hybrid qubit with charge noise
- Pulse sequences for suppressing leakage in single-qubit gate operations
- Implementation of geometric quantum gates on microwave-driven semiconductor charge qubits