Cooling through parametric modulations and phase-preserving quantum measurements

• URL: http://arxiv.org/abs/2204.00476v1
• Date: Fri, 1 Apr 2022 14:34:07 GMT
• Title: Cooling through parametric modulations and phase-preserving quantum measurements
• Authors: Sreenath K. Manikandan and Sofia Qvarfort
• Abstract summary: Protocol is robust against moderate amounts of dissipation and phase errors in the feedback loop. Our work has implications for the cooling of mechanical resonators and the integration of quantum refrigerators into quantum circuits.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a cooling protocol that uses phase-preserving quantum measurements and phase-dependent modulations of the trapping potential at parametric resonance to cool a quantum oscillator to near its quantum-mechanical ground-state. The sequential measurements and feedback provide a definite phase reference and stabilize the oscillator in the long-time limit. The protocol is robust against moderate amounts of dissipation and phase errors in the feedback loop. Our work has implications for the cooling of mechanical resonators and the integration of quantum refrigerators into quantum circuits.

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