Testing collapse models with levitated nanoparticles: the detection challenge
arXiv:1903.08492 · doi:10.1103/PhysRevA.100.012119
Abstract
We consider a nanoparticle levitated in a Paul trap in ultrahigh cryogenic vacuum, and look for the conditions which allow for a stringent noninterferometric test of spontaneous collapse models. In particular we compare different possible techniques to detect the particle motion. Key conditions which need to be achieved are extremely low residual pressure and the ability to detect the particle at ultralow power. We compare three different detection approaches based respectively on a optical cavity, optical tweezer and a electrical readout, and for each one we assess advantages, drawbacks and technical challenges.
References in corpus (9)
- Lower and Upper Bounds on CSL Parameters from Latent Image Formation and IGM Heating
- Matter wave lensing to picokelvin temperatures
- Optomechanical sensing of spontaneous wave-function collapse
- Testing spontaneous wave-function collapse models on classical mechanical oscillators
- Photon emission rate from atomic systems in the CSL model
- Master equation approach to optomechanics with arbitrary dielectrics
- Hybrid quantum systems with trapped charged particles
- X-rays help to unfuzzy the concept of measurement
- Wigner Function Reconstruction in Levitated Optomechanics