Enhanced third-order and fifth-order Kerr nonlinearities in a cold atomic system via Rydberg-Rydberg interaction
Zhengyang Bai,Guoxiang Huang +1 more
TLDR
It is found that the fifth-order nonlinear optical susceptibility in the Rydberg-EIT system may be five orders of magnitude larger than that obtained in traditional EIT systems.Abstract:
We investigate the optical Kerr nonlinearities of an ensemble of cold Rydberg atoms under the condition of electromagnetically induced transparency (EIT). By using an approach beyond mean-field theory, we show that the system possesses not only enhanced third-order nonlinear optical susceptibility, but also giant fifth-order nonlinear optical susceptibility, which has a cubic dependence on atomic density. Our results demonstrate that both the third-order and the fifth-order nonlinear optical susceptibilities consist of two parts, contributed respectively by photon-atom interaction and Rydberg-Rydberg interaction. The Kerr nonlinearity induced by the Rydberg-Rydberg interaction plays a leading role at high atomic density. We find that the fifth-order nonlinear optical susceptibility in the Rydberg-EIT system may be five orders of magnitude larger than that obtained in traditional EIT systems. The results obtained may have promising applications in light and quantum information processing and transmission at weak-light level.read more
Citations
More filters
Journal ArticleDOI
Superposition of Entangled Coherent States: Physical Realization and Properties
TL;DR: In this article, a special superposition of multipartite entangled coherent states is introduced and investigated using the free-traveling optical field scheme, and the correlation behavior of the superposed state is investigated.
Journal ArticleDOI
Enhanced nonlinearity of four-wave mixing via Rydberg–Rydberg interactions
TL;DR: In this paper , the authors investigated the four-wave mixing nonlinearity in an ensemble of cold Rydberg atoms with each of them regarded as a double-ladder system.
Journal ArticleDOI
Accessing and manipulating dispersive shock waves in a nonlinear and nonlocal Rydberg medium
TL;DR: In this paper , the authors proposed a scheme to generate weak-light dispersive shock wave (DSW) in an atomic gas involving strongly interacting Rydberg states under the condition of electromagnetically induced transparency (EIT).
Journal ArticleDOI
Two-dimensional lattice soliton and pattern formation in a cold Rydberg atomic gas with nonlocal self-defocusing Kerr nonlinearity
TL;DR: In this paper , a Rydberg-dressed atomic gas under the condition of electromagnetically induced transparency (EIT) was used to realize two-dimensional (2D) optical lattices and achieve nonlocal giant Kerr nonlinearity.
References
More filters
Journal ArticleDOI
Electromagnetically induced transparency : Optics in coherent media
TL;DR: In this paper, the authors consider the atomic dynamics and the optical response of the medium to a continuous-wave laser and show how coherently prepared media can be used to improve frequency conversion in nonlinear optical mixing experiments.
Journal ArticleDOI
Light speed reduction to 17 metres per second in an ultracold atomic gas
Lene Vestergaard Hau,Lene Vestergaard Hau,Stephen E. Harris,Zachary Dutton,Zachary Dutton,Cyrus H. Behroozi,Cyrus H. Behroozi +6 more
TL;DR: In this paper, an experimental demonstration of electromagnetically induced transparency in an ultracold gas of sodium atoms, in which the optical pulses propagate at twenty million times slower than the speed of light in a vacuum, is presented.
Journal ArticleDOI
Quantum information with Rydberg atoms
TL;DR: Rydberg atoms with principal quantum number $n⪢1$ have exaggerated atomic properties including dipole-dipole interactions that scale as ${n}^{4}$ and radiative lifetimes that scale at least{n}−3}$ as mentioned in this paper, and it was proposed a decade ago to implement quantum gates between neutral atom qubits.
Journal ArticleDOI
Optical quantum memory
TL;DR: In this paper, the authors report on state-of-the-art developments in the field of optical quantum memory, establish criteria for successful quantum memory and detail current performance levels, including optical delay lines, cavities and electromagnetically induced transparency, as well as schemes that rely on photon echoes and the offresonant Faraday interaction.
Journal ArticleDOI
Quantum nonlinear optics with single photons enabled by strongly interacting atoms
Thibault Peyronel,Ofer Firstenberg,Ofer Firstenberg,Qiyu Liang,Sebastian Hofferberth,Alexey V. Gorshkov,Thomas Pohl,Mikhail D. Lukin,Vladan Vuletic +8 more
TL;DR: This work demonstrates a medium that is nonlinear at the level of individual quanta, exhibiting strong absorption of photon pairs while remaining transparent to single photons, paving the way for quantum-by-quantum control of light fields, including single-photon switching, all-optical deterministic quantum logic and the realization of strongly correlated many-body states of light.