Frequency-selective single photon detection using a double quantum dot

Abstract

We use a double quantum dot as a frequency-tunable on-chip microwave detector to investigate the radiation from electron shot-noise in a near-by quantum point contact. The device is realized by monitoring the inelastic tunneling of electrons between the quantum dots due to photon absorption. The frequency of the absorbed radiation is set by the energy separation between the dots, which is easily tuned with gate voltages. Using time-resolved charge detection techniques, we can directly relate the detection of a tunneling electron to the absorption of a single photon.

References in corpus (4)

• Fast Single-Charge Sensing with an rf Quantum Point Contact
• A double-dot quantum ratchet driven by an independently biased quantum point contact
• Antibunched photons emitted by a quantum point contact out of equilibrium
• Entangled microwave photons from quantum dots

Cited by in corpus (17)

• Electron counting in quantum dots
• Experimental Test of the High-Frequency Quantum Shot Noise Theory in a Quantum Point Contact
• Architecture for high-sensitivity single-shot readout and control of the electron spin of individual donors in silicon
• Cooling a mechanical resonator via coupling to a tunable double quantum dot
• Telegraph Noise in Coupled Quantum Dot Circuits Induced by a Quantum Point Contact
• Statistical electron excitation in a double quantum dot induced by two independent quantum point contacts
• Measuring current by counting electrons in a nanowire quantum dot
• Detecting THz current fluctuations in a quantum point contact using a nanowire quantum dot
• Bolometric Detection of Quantum Shot Noise in Coupled Mesoscopic Systems
• Detecting single-electron tunneling involving virtual processes in real time
• Detector Backaction on the Self-Consistent Bound State in Quantum Point Contacts
• Non-invasive detection of molecular bonds in quantum dots
• Time-resolved charge detection with cross-correlation techniques
• Noise-induced spectral shift measured in a Double Quantum Dot
• Theory of quantum noise detectors based on resonant tunneling
• Voltage-Controlled Berry Phases in Two Coupled Quantum Dots
• Nonequilibrium interactions between two quantum circuits