Mode structure and photon number correlations in squeezed quantum pulses

Photon-number-squeezed recombination radiation in semiconductors

We recently reported the generation of cw photon-numbersqueezed (sub-Poisson) light from a Franck-Hertz experiment in which Hg vapor was excited by inelastic collisions with a space-charge-limited (quiet) electron beam.' The experiment operates by transferring the anticlustering properties of the electrons, resulting from Coulomb repulsion, to the photons. The direction of transfer is the inver...

Quantum Squeezed Light Propagation in an Optical Parity-Time (PT)-Symmetric Structure

We investigate the medium effect of a parity-time (PT)-symmetric bilayer on the quantum optical properties of an incident squeezed light at zero temperature (T=0 K). To do so, we use the canonical quantization approach and describe the amplification and dissipation properties of the constituent layers of the bilayer structure by Lorentz model to analyze the quadrature squeezing of the outgoing ...

Photon statistics of a two-mode squeezed vacuum.

Quantum Correlations and Number Theory

We study spin-1/2 Heisenberg XXX antiferromagnet. The spectrum of the Hamiltonian was found by Hans Bethe in 1931, [1]. We study the probability of formation of ferromagnetic string in the antiferromagnetic ground state, which we call emptiness formation probability P (n). This is the most fundamental correlation function. We prove that for the short strings it can be expressed in terms of the ...

Observation of squeezed states with strong photon-number oscillations

Moritz Mehmet,1,2 Henning Vahlbruch,1 Nico Lastzka,1 Karsten Danzmann,1 and Roman Schnabel1 1Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) and Institut für Gravitationsphysik, Leibniz Universität Hannover, Callinstraße 38, D-30167 Hannover, Germany 2Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Welfengarten 1, D-30167 Hanno...