Improvement of measurement accuracy in SU(1,1) interferometers

Abstract

We consider an SU(1,1) interferometer employing four-wave mixers that is fed with two-mode states which are both coherent and intelligent states of the SU(1,1) Lie group. It is shown that the phase sensitivity of the interferometer can be essentially improved by using input states with a large photon-number difference between the modes.

LaTeX, 5 pages, 1 figure (compressed PostScript, available at http://www.technion.ac.il/~brif/graphics/interfer_graph/qopt.ps.gz ). More information on http://www.technion.ac.il/~brif/science.html

Cited by in corpus (14)

• Nonclassical interferometry with intelligent light
• Optical Holonomic Quantum Computer
• Analytic representations based on SU(1,1) coherent states and their applications
• SU(2) and SU(1,1) algebra eigenstates: A unified analytic approach to coherent and intelligent states
• Robertson Intelligent States
• Quantization of the Optical Phase Space S^2 = {phi mod 2pi, I > 0} in Terms of the Group SO(1,2)
• Predictability sieve, pointer states, and the classicality of quantum trajectories
• Phase estimation by photon counting measurements in the output of a linear Mach Zehnder (MZI) interferometer
• Factorisation of analytic representations in the unit disk and number-phase statistics of a quantum harmonic oscillator
• A New Look at the Quantum Mechanics of the Harmonic Oscillator
• Generation of single-mode SU(1,1) intelligent states and an analytic approach to their quantum statistical properties
• Squeezing evolution with non-dissipative SU(1,1) systems
• Quantum statistical properties of some new classes of intelligent states associated with special quantum systems
• Analytic representations based on su(3) coherent states and Robertson intelligent states