A few decades ago, quantum optics stood out as a new domain of physics by exhibiting
states of light with no classical equivalent. The first investigations concerned single photons …

Multimode quantum resources or states, in which quantum correlations are shared and
distributed among multiple parties, are important not only for fundamental tests of quantum …

Quantum states of light can improve imaging whenever the image quality and resolution are
limited by the quantum noise of the illumination. In the case of a bright illumination, quantum …

We present experimental results on the generation of multi-spatial-mode, single-beam,
quadrature squeezed light using four-wave mixing in hot Rb vapor. Squeezing and phase …

We demonstrate an unseeded multimode four-wave-mixing process in hot Rb 85 vapor
using two pump beams of the same frequency that cross at a small angle. This results in the …

The squeezed state is important in quantum metrology and quantum information. The most
effective generation tool known is the optical parametric oscillator (OPO). Currently, only the …

We present squeezed light that is robust against spatial mode mismatch (beam
displacement, tilt, and beam-size difference), which is generated from a self-imaging optical …

We apply collective Raman scattering to create, store and retrieve spatially multimode light
in warm rubidium-87 vapors. The light is created in a spontaneous Stokes scattering …

The orbital angular momentum of light, unlike spin, is an infinite-dimensional discrete
variable and may hence offer enhanced performances for encoding, transmitting, and …

We propose a general and feasible approach to realize a large number of squeezed spatial
modes. This is achieved by manipulation of paraxial diffraction such that the critical wave …