Single-Qubit Lasing and Cooling at the Rabi Frequency

2007/01/31 by Julian Hauss, Arkady Fedorov, Carsten Hutter +2 · 4 citations
Computer Science · Physics and Astronomy · #Atomic physics #Charge qubit #Flux qubit #Laser #Lasing threshold #Mechanical and Optical Resonators #Phase qubit #Physics #Population inversion #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum decoherence #Quantum electrodynamics #Quantum mechanics #Qubit #Rabi cycle #Rabi frequency #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physrevlett.100.037003

published as Phys. Rev. Lett. 100, 037003 (2008) · Replaced with final published version, fig. 2 compressed

openalex publication_date 2008/01/24 · arxiv created 2008/02/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

For a superconducting qubit driven to perform Rabi oscillations and coupled to a slow electromagnetic or nanomechanical oscillator we describe previously unexplored quantum optics effects. When the Rabi frequency is tuned to resonance with the oscillator, the latter can be driven far from equilibrium. Blue detuned driving leads to a population inversion in the qubit and a bistability with lasing behavior of the oscillator; for red detuning the qubit cools the oscillator. This behavior persists at the symmetry point where the qubit-oscillator coupling is quadratic and decoherence effects are minimized. There the system realizes a "single-atom-two-photon laser."

Citations

• Vacuum Rabi Oscillations in a Macroscopic Superconducting QubitLCOscillator System
• Theory of dressed-state lasers. I. Effective Hamiltonians and stability properties
• Population Inversion of a Driven Two-Level System in a Structureless Bath
• Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
• Theory of Microwave Parametric Down-Conversion and Squeezing Using Circuit QED
• Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
• Low-frequency Rabi spectroscopy for a dissipative two-level system

Cited by

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• Quartz-superconductor quantum electromechanical system
• Ground-state cooling of a nanomechanical resonator via a Cooper-pair box qubit