Squeezing properties of light field in the system of interaction between Bose Einstein condensate and two mode squeezed coherent state light field

2019 ◽  
Vol 1 (1) ◽  
pp. 1-7
Author(s):  
Tie Chenghua
2003 ◽  
Vol 17 (28) ◽  
pp. 5289-5293
Author(s):  
D. ROUBTSOV ◽  
Y. LÉPINE

We discuss the possibility for a moving droplet of excitons and phonons to form a coherent state inside the packet. We describe such an inhomogeneous state in terms of Bose–Einstein condensation and prescribe it a macroscopic wave function. Existence and, thus, coherency of such a Bose-core inside the droplet can be checked experimentally if two moving packets are allowed to interact.


2010 ◽  
Vol 24 (10) ◽  
pp. 937-944 ◽  
Author(s):  
YU GUO ◽  
RONG-SHENG QU

An optical scheme of the quantum teleportation of superposed coherent states from light pulse to the atoms in Bose–Einstein condensate in terms of optical elements is presented. Beam splitters, photodetectors, cross-Kerr medium, and coherent state sources are needed in this scheme. The probability of successful teleportation is also obtained.


2006 ◽  
Vol 20 (12) ◽  
pp. 675-681
Author(s):  
ZAIRA NAZARIO ◽  
DAVID I. SANTIAGO

We show that the suppression of light scattering off a Bose Einstein Condensate is equivalent to the Landau argument for superfluidity and thus is a consequence of the Principle of Superfluidity. The superfluid ground state of a BEC contains nonseparable, nontrivial correlations between the bosons that make up the system, i.e., it is entangled. The correlations in the ground state entangle the bosons into a coherent state for the lowest energy state. The entanglement is so extreme that the bosons that make up the system cannot be excited at long wavenumbers. Their existence at low energies is impossible. Only quantum sound can be excited, i.e. the excitations are Bogolyubov quasiparticles which do not resemble free bosons whatsoever at low energies. This means that the system is superfluid by the Landau argument and the superfluidity is ultimately the reason for suppressed scattering at low wavelengths.


2008 ◽  
Vol 387 (14) ◽  
pp. 3449-3453 ◽  
Author(s):  
Chunjia Huang ◽  
Jiayuan Fang ◽  
Huiyong He ◽  
Fanzhi Kong ◽  
Ming Zhou

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