Cooling a mechanical resonator via coupling to a tunable double quantum dot
arXiv:0807.4833 · doi:10.1103/PhysRevB.79.075304
Abstract
We study the cooling of a mechanical resonator (MR) that is capacitively coupled to a double quantum dot (DQD). The MR is cooled by the dynamical backaction induced by the capacitive coupling between the DQD and the MR. The DQD is excited by a microwave field and afterwards a tunneling event results in the decay of the excited state of the DQD. An important advantage of this system is that both the energy level splitting and the decay rate of the DQD can be well tuned by varying the gate voltage. We find that the steady average occupancy, below unity, of the MR can be achieved by changing both the decay rate of the excited state and the detuning between the transition frequency of the DQD and the microwave frequency, in analogy to the laser sideband cooling of an atom or trapped ion in atomic physics. Our results show that the cooling of the MR to the ground state is experimentally implementable.
10 pages, 5 figures
References in corpus (22)
- Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
- Theory of ground state cooling of a mechanical oscillator using dynamical back-action
- Radiation-pressure cooling and optomechanical instability of a micro-mirror
- Self-cooling of a micro-mirror by radiation pressure
- Superconducting Circuits and Quantum Information
- Resolved Sideband Cooling of a Micromechanical Oscillator
- Ground-state cooling of a micromechanical oscillator: generalized framework for cold damping and cavity-assisted cooling schemes
- Cooling a nanomechanical resonator with quantum back-action
- Feedback cooling of a cantilever's fundamental mode below 5 mK
- Frequency-selective single photon detection using a double quantum dot
- Microwave-Induced Cooling of a Superconducting Qubit
- Using a quantum dot as a high-frequency shot noise detector
- Mass Detection with Nonlinear Nanomechanical Resonator
- Single-qubit lasing and cooling at the Rabi frequency
- Sisyphus cooling and amplification by a superconducting qubit
- Passive Cooling of a Micromechanical Oscillator with a Resonant Electric Circuit
- Two-Mode Squeezed States and Entangled States of Two Mechanical Resonators
- Simultaneous cooling of an artificial atom and its neighboring quantum system
- Prospects for cooling nanomechanical motion by coupling to a superconducting microwave resonator
- Lower limit on the achievable temperature in resonator-based sideband cooling
- Detecting quantum-coherent nanomechanical oscillations using the current-noise spectrum of a double quantum dot
- Cooling of a Micro-mechanical Resonator by the Back-action of Lorentz Force