5 papers
Squeezing for dispersive readout of NV magnetometer
A. M. Kozodaev, S. M. Drofa, P. G. Vilyuzhanina +9
Nitrogen vacancy centers in diamond have established themselves as good sensing element for various type of sensors. In particular magnetometers based on diamond impurities are qui…
Heisenberg limit in phase measurements: the threshold detection approach
D. I. Salykina, V. S. Liamin, V. L. Gorshenin +2
The ultimate precision of phase estimation is limited by the Heisenberg scaling , where is a numerical prefactor and is the mean number of photons intera…
Amplified quantum non-demolition measurements of optical quadratures using quadratic nonlinearity
D. I. Salykina, V. S. Liamin, P. R. Sharapova +1
Quantum non-demolition (QND) measurement is a special technique that allows to evade quantum back-action. In this paper, we propose a new QND measurement scheme of the optical fiel…
Increasing quantum speed meter sensitivity using optical spring
L. A. Barinov, F. Ya. Khalili
The double-pass interferometer scheme was proposed in Ref.\,[Light Sci. Appl. {\bf 7}, 11 (2018)] as the method of implementation of the quantum speed meter concept in future laser…
Using non-Gaussian quantum states for detection of a given phase shift
V. L. Gorshenin, F. Ya. Khalili
Injecting a non-Gaussian (Fock or Shrödinger cat) quantum state into the dark port of a two-arm interferometer and a strong classical light into the bright one, it is possible, in…