A perturbative algorithm for rotational decoherence
arXiv:1912.08159 · doi:10.1103/PhysRevA.103.032220
Abstract
Recent advances in levitated optomechanics provide new perspectives for the use of rotational degrees of freedom for the development of quantum technologies as well as for testing fundamental physics. As for the translational case, their use, especially in the quantum regime, is limited by environmental noises, whose characterization is fundamental in order to assess, control and minimize their effect, in particular decoherence. Here, we present a general perturbative approach to compute decoherence for a quantum system in a superposition of its rotational degrees of freedom. The specific cases of the dipole-dipole and quadrupole-quadrupole interactions are solved explicitly, and we show that the rotational degrees of freedom decohere on a time scale that can be longer than the translational one.
References in corpus (32)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Cavity Optomechanics
- Introduction to Quantum Noise, Measurement and Amplification
- Space-borne Bose-Einstein condensation for precision interferometry
- Torsional optomechanics of a levitated nonspherical nanoparticle
- Near-field interferometry of a free-falling nanoparticle from a point-like source
- Collisional decoherence reexamined
- Full Rotational Control of Levitated Silicon Nanorods
- Force sensing with an optically levitated charged nanoparticle
- Parametric Feedback Cooling of Levitated Optomechanics in a Parabolic Mirror Trap
- Improved noninterferometric test of collapse models using ultracold cantilevers
- Theory of decoherence in a matter wave Talbot-Lau interferometer
- Using a Laguerre-Gaussian beam to trap and cool the rotational motion of a mirror
- Cavity-assisted manipulation of freely rotating silicon nanorods in high vacuum
- Precession Motion in Levitated Optomechanics
- Ro-Translational Cavity Cooling of Dielectric Rods and Disks
- Testing collapse models with levitated nanoparticles: the detection challenge
- Non-interferometric test of the Continuous Spontaneous Localization model based on rotational optomechanics
- Rotational friction and diffusion of quantum rotors
- Spatio-Orientational Decoherence of Nanoparticles
- Optomechanics based on angular momentum exchange between light and matter
- Monitoring approach to open quantum dynamics using scattering theory
- Dissipation in the Caldeira-Leggett model
- Decoherence of rotational degrees of freedom
- Collapse-induced Orientational Localization of Rigid Rotors
- Adjoint master equation for Quantum Brownian Motion
- Quantum Angular Momentum Diffusion of Rigid Bodies
- Rotational cavity optomechanics
- When Cavendish meets Feynman: A quantum torsion balance for testing the quantumness of gravity
- Wigner function for the orientation state
- Talbot--Lau effect beyond the point-particle approximation
- Coherent scattering in non-relativistic quantum mechanics