English
Related papers

Related papers: Zero-threshold correlated-photon laser with a sing…

200 papers

We propose methods for realization of continuous two photon source using coherently pumped quantum dot embedded inside a photonic crystal cavity. We analyze steady state population in quantum dot energy levels and field inside the cavity…

Quantum Physics · Physics 2020-08-26 Harmanpreet Singh , Manoj Das , P. K. Pathak

We predict that all-optically reconfigurable generation of photon pairs with tailored spatial entanglement can be realized via spontaneous parametric down-conversion in integrated nonlinear coupled waveguides. The required elements of the…

The generation of entangled photon pairs by parametric down--conversion from solid state CW lasers with small coherence time is theoretically and experimentally analyzed. We consider a compact and low-cost setup based on a two-crystal…

Quantum Physics · Physics 2009-04-16 Simone Cialdi , Fabrizio Castelli , Matteo G. A. Paris

We present a scheme for the fast generation of entangled photons from a single quantum dot coupled to a planar photonic crystal that support two orthogonally polarized cavity modes. We discuss ``within generation'' and ``across generation''…

Mesoscale and Nanoscale Physics · Physics 2009-12-07 P. K. Pathak , S. Hughes

Single photons and single-photon pairs, inherently nonclassical in their nature, are fundamental elements of quantum sciences and technologies. Here, we propose to realize the nonclassical correlated deterministic photon pairs at the…

Quantum Physics · Physics 2022-04-20 Zhong Peng , Yuangang Deng

Our cavity quantum electrodynamics calculations demonstrate generation of steady-state entanglement between a plasmonically coupled pair of quantum dots by using single-mode squeezed light source. We show that strong coupling of plasmons to…

Quantum Physics · Physics 2023-12-04 Sina Soleimanikahnoj , Stephen K. Gray , Norbert F. Scherer

The cascade-emitted biphotons generated from the alkali metal atomic ensembles are an excellent entanglement resource which enables long-distance quantum communication. The communication of quantum information between distant locations can…

Quantum Physics · Physics 2022-06-15 Y. -E. Wong , T. H. Chang , H. H. Jen

Pumping a nonlinear crystal by an intense radiation results in the optical parametric generation of photons in two modes (the signal and the idler). The quantized electromagnetic field in these modes is described by a continuous-variable…

Quantum Physics · Physics 2020-01-01 S. V. Vintskevich , D. A. Grigoriev , S. N. Filippov

Integrated optics provides a platform for the experimental implementation of highly complex and compact circuits for practical applications as well as for advances in the fundamental science of quantum optics. The lithium niobate (LN)…

Optics · Physics 2021-04-21 Guang-Yuan Chen , Zhi-Xin Li , Yu-Hui Chen , Xiang-Dong Zhang

We propose a scheme for the controlled generation of Einstein-Podosky-Rosen (EPR) entangled photon pairs from an atom coupled to a high Q optical cavity, extending the prototype system as a source for deterministic single photons. A…

Quantum Physics · Physics 2009-11-11 D. L. Zhou , B. Sun , C. P. Sun , L. You

We studied the effects arising from a coherent source of photons on the entanglement between excitons in a strained graphene monolayer. The graphene layer was considered to be embedded in an imperfect optical microcavity. In our…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Gabriel P. Martins , Oleg Berman , Godfrey Gumbs , Yurii E. Lozovik

Realizing an on-chip reconfigurable source of path-entangled photons is of critical importance for the advancement of quantum information processing and networking. Achieving this goal has proven challenging to date. We present an on-chip…

Optics · Physics 2017-05-23 Raja Ahmad , Ayman F. Abouraddy

We theoretically propose a biphoton entanglement-enhanced multidimensional spectroscopic technique as a probe for the dissipative polariton dynamics in the ultrafast regime. It is applied to the cavity-confined monomeric photosynthetic…

Quantum Physics · Physics 2022-09-07 Arunangshu Debnath , Angel Rubio

Parametrically driving an optical cavity that simultaneously couples to an atomic ensemble quantum memory enables in-situ generation of multimode photon-memory entanglement. A high-rate bi-party photon-memory entanglement can be generated…

Quantum Physics · Physics 2024-10-17 Hoi-Kwan Lau , Hong Qiao , Aashish A. Clerk , Tian Zhong

Entangled photon pairs are a vital resource for quantum information, computation, and metrology. Although these states are routinely generated at optical frequencies, sources of quantum of light are notably lacking at extreme ultraviolet…

A potential scheme is proposed to generate complete sets of entangled photons in the context of cavity quantum electrodynamics (QED). The scheme includes twice interactions of atoms with cavities, in which the first interaction is made in…

Quantum Physics · Physics 2007-05-23 X. L. Zhang , M. Feng , K. L. Gao

We report the generation of polarization-entangled photons by femtosecond-pulse-pumped spontaneous parametric down-conversion in a cascade of two type-I crystals. Highly entangled pulsed states were obtained by introducing a temporal delay…

Quantum Physics · Physics 2009-11-07 Y. Nambu , K. Usami , Y. Tsuda , K. Matsumoto , K. Nakamura

The future of integrated quantum photonics relies heavily on the ability to engineer refined methods for preparing the quantum states needed to implement various quantum protocols. An important example of such states are quantum-correlated…

Quantum Physics · Physics 2018-02-28 Jesper B. Christensen , Jacob G. Koefoed , Karsten Rottwitt , Colin. J. McKinstrie

Maximally entangled photon pairs with a spatial degree of freedom is a potential way for realizing high-capacity quantum computing and communication. However, methods to generate such entangled states with high quality, high brightness, and…

We theoretically investigate polarization-entangled photon generation by using a semiconductor quantum dot embedded in a microcavity. The entangled states can be produced by the application of two cross-circularly polarized laser fields.…