On-Chip Quantum Dot Light Source for Quantum State Readout

Abstract

We use microwave radiation generated by a semiconductor double quantum dot (DQD) micromaser for charge state detection. A cavity is populated with n_c ~ 6000 photons by driving a current through an emitter DQD. These photons are used to sense the charge state of a target DQD that is located at the opposite end of the cavity. Charge dynamics in the target DQD influence the output power and emission frequency of the maser. Three different readout mechanisms are compared. The detection scheme requires no cavity input field and may potentially be used to improve the scalability of semiconductor and superconducting qubit readout technologies.

References in corpus (28)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
• Single-shot read-out of an individual electron spin in a quantum dot
• Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
• Realization of Three-Qubit Quantum Error Correction with Superconducting Circuits
• Circuit Quantum Electrodynamics with a Spin Qubit
• Manipulation of a single charge in a double quantum dot
• Dipole coupling of a double quantum dot to a microwave resonator
• Single artificial-atom lasing
• Strong Coupling of a Single Electron in Silicon to a Microwave Photon
• High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity
• Singlet-triplet spin blockade and charge sensing in a few-electron double quantum dot
• Strong Coupling Cavity QED with Gate-Defined Double Quantum Dots Enabled by a High Impedance Resonator
• Coherent coupling of a single spin to microwave cavity photons
• Coupling a quantum dot, fermionic leads and a microwave cavity on-chip
• Fast sensing of double-dot charge arrangement and spin state with an rf sensor quantum dot
• Charge and spin state readout of a double quantum dot coupled to a resonator
• Semiconductor double quantum dot micromaser
• Characterizing Quantum Microwave Radiation and its Entanglement with Superconducting Qubits using Linear Detectors
• Demonstration of an ac Josephson junction laser
• Out of equilibrium charge dynamics in a hybrid cQED architecture
• Mesoscopic admittance of a double quantum dot
• Microwave Emission from Hybridized States in a Semiconductor Charge Qubit
• A Radio Frequency Charge Parity Meter
• Double Quantum Dot Floquet Gain Medium
• Threshold Dynamics of a Semiconductor Single Atom Maser
• Injection Locking of a Semiconductor Double Quantum Dot Micromaser
• Pump-probe scheme for electron-photon dynamics in hybrid conductor-cavity systems

Cited by in corpus (5)

• Tunable phonon induced steady state coherence in a double quantum dot
• Emergent $\mathcal{P}\mathcal{T}$ symmetry in a double-quantum-dot circuit QED set-up
• Generalized Master Equation Approach to Time-Dependent Many-Body Transport
• Equivalence between the second order steady state for the spin-Boson model and its quantum mean force Gibbs state
• Back-action effects in cavity-coupled quantum conductors