On-Chip Quantum-Dot Light Source for Quantum-Device Readout

2017/07/27 by Y.-Y. Liu, Y. -Y. Liu, J. Stehlik +6 · 1 citation
Computer Science · Physics and Astronomy · #Charge (physics) #Mechanical and Optical Resonators #Microwave #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum dot #Quantum information #Qubit #SIGNAL (programming language) #Spin (aerodynamics) #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physrevapplied.9.014030

published as Phys. Rev. Applied 9, 014030 (2018)

arxiv created 2017/07/27 · openalex created_date 2017/08/08 · openalex publication_date 2018/01/29 · arxiv updated 2018/02/02 · openalex updated_date 2026/08/05

Abstract

Microwave readout of charge states and spin states is important for quantum information science, but is difficult to scale to a large number of qubits, due to cost and the size of the components required to faithfully transmit the signal from room temperature to mK qubit temperatures. In this study, a voltage-biased semiconductor double quantum dot is used to generate microwave photons, yielding a cryogenic on-chip source for charge-state readout. Surprisingly, the emission properties of the double dot are affected by other qubits placed in the same microwave cavity. These results should facilitate the development of a large quantum processor to realize true quantum supremacy.

Citations

• Characterizing quantum microwave radiation and its entanglement with superconducting qubits using linear detectors
• Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
• Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
• High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity
• Dipole coupling of a double quantum dot to a microwave resonator
• Circuit quantum electrodynamics with a spin qubit
• Fast sensing of double-dot charge arrangement and spin state with a radio-frequency sensor quantum dot
• Single-shot read-out of an individual electron spin in a quantum dot
• Strong Coupling Cavity QED with Gate-Defined Double Quantum Dots Enabled by a High Impedance Resonator
• Demonstration of an ac Josephson junction laser

Cited by

• Equivalence between the second order steady state for the spin-boson model and its quantum mean force Gibbs state

Related

• Integrated multiplexed microwave readout of silicon quantum dots in a cryogenic CMOS chip
• Probing semiconductor quantum dot state and manipulation with superconducting transmission line resonator
• Dipole coupling of a double quantum dot to a microwave resonator
• Dispersive Readout of a SiMOS Quantum Dot Using a Flip-Chip Integrated Microwave Resonator
• Fast and Sensitive Readout of a Semiconductor Quantum Dot Using an In-Situ Microwave Resonator with Enhanced Gate Lever Arm