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The permanent electric dipole moment (EDM) of the ground state of potassium has been found by measuring the electric susceptibility. We find dK=[1.58±0.19(stat)±0.13(syst)]×10-8e.cm and the induced ED...
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space. These functions can be obtained through a Fourier transform in the transve...
We experimentally study the behavior of orbital angular momentum (OAM) of light in a noncollinear second harmonic generation (SHG) process. The experiment is performed by using a type I BBO crystal un...
An efficient method for exploring the orbital angular momentum of an optical vortex beam is provided.The method, based on a triangular multipoint plate, can easily determine both the sign and the magn...
The orbital angular momentum (OAM) of light, associated with a helical structure of the wavefunction, has a great potential for quantum photonics, as it allows attaching a higher dimensional quantum s...
The far- fi eld diffraction pattern of an elliptical vortex beam by a slit hexagon aperture is investigated theoretically and experimentally. It is found that the number of the dark spots or stripes i...
The evolution of an entangled photon state propagating through a turbulent atmosphere is formulated in terms of a set of coupled first order differential equations, by using an infinitesimal propagati...
High-dimensional quantum states, or qudits, represent a promising resource in the quantum infor-mation field. Here we present the experimental generation of four-dimensional quantum states, or ququart...
We report the first experimental characterization of the first-order continuous variable orbital angular momentum states. Using a spatially non-degenerate optical parametric oscillator (OPO) we produc...
The orbital angular momentum, OAM, of photons offers a suitable support to carry the quantum data of multiple users. We present two novel optical setups that send the information of n quantum communic...
We report on the storage of orbital angular momentum of light in a cold ensemble of cesium atoms. We employ Bragg diffraction to retrieve the stored optical information impressed into the atomic coher...
Spiral spectra of vortex beams with coma aberration are studied. It is shown that the orbital angular momentum(OAM) states of vortex beams with coma aberration are different from those aberration-free...

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