Measure the temperature of the spin via weak measurement

Abstract

In this study, we give a new proposal to measure the temperature of the spin in a sample in magnetic resonance force microscopy system by using postselected weak measurement, and investigate the fisher information to estimate the precision of our scheme. We showed that in high temperature regime the temperature of the spin can be measured via weak measurement technique with proper postselection and our scheme able to increase the precision of temperature estimation.

6pages, 3 figures

References in corpus (12)

• Radiation-pressure cooling and optomechanical instability of a micro-mirror
• Ultrasensitive Beam Deflection Measurement via Interferometric Weak Value Amplification
• Experimental joint weak measurement on a photon pair as a probe of Hardy's Paradox
• Direct observation of Hardy's paradox by joint weak measurement with an entangled photon pair
• Optimizing the Signal to Noise Ratio of a Beam Deflection Measurement with Interferometric Weak Values
• Precision frequency measurements with interferometric weak values
• Direct measurement of the density matrix of a quantum system
• Qubit-assisted thermometry of a quantum harmonic oscillator
• Direct measurement of a nonlocal entangled quantum state
• A single quantum dot as an optical thermometer for mK temperatures
• Sub-Kelvin optical thermometry of an electron reservoir coupled to a self-assembled InGaAs quantum dot
• Experimental simultaneous read out of the real and imaginary parts of the weak value