Dispersive Coupling Between the Superconducting Transmission Line Resonator and the Double Quantum Dots

Abstract

Realization of controllable interaction between distant qubits is one of the major problems in scalable solid state quantum computing. We study a superconducting transmission line resonator (TLR) as a tunable dispersive coupler for the double-dot molecules. A general interaction Hamiltonian of $n$ two-electron spin-based qubits and the TLR is presented, where the double-dot qubits are biased at the large detuning region and the TLR is always empty and virtually excited. Our analysis o the main decoherence sources indicates that various major quantum operations can be reliably implemented with current technology.

10 pages, 5 figures

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Cited by in corpus (10)

• Circuit QED using a semiconductor double quantum dot
• Coupling two distant double quantum dots to a microwave resonator
• Generation of quantum-dot cluster states with superconducting transmission line resonator
• Non-local transport properties of nanoscale conductor-microwave cavity systems
• Microwave quantum optics and electron transport through a metallic dot strongly coupled to a transmission line cavity
• Generating entangled states from coherent states in circuit-QED
• Quantum coherence versus quantum discord in two coupled semiconductor double-dot molecules via a transmission line resonator
• Symmetric reflection line resonator for semiconductor circuit quantum electrodynamics
• Extracting entangled qubits from Majorana fermions in quantum dot chains through the measurement of parity
• Generation of the Cluster States using Double Quantum Dots in Circuit QED