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We present a scheme for obtaining entangled photons and quantum phase gates in a room-temperature four-state tripod-type atomic system with two-mode active Raman gain (ARG). We analyze the linear and nonlinear optical response of this ARG…

Optics · Physics 2015-06-03 Chao Hang , Guoxiang Huang

We propose an experimental arrangement to image, with attosecond resolution, transient surface plasmonic excitations. The required modifications to state-of-the-art setups used for attosecond streaking experiments from solid surfaces only…

Optics · Physics 2015-06-18 Mattia Lupetti , Julia Hengster , Thorsten Uphues , Armin Scrinzi

Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude and phase of that signal. Commonly performed with photons and electrons, it finds numerous applications in imaging,…

We investigate spontaneous photon emission and absorption processes of two two-level atoms trapped close to the focal points of an ellipsoidal cavity, thereby taking into account the full multimode scenario. In particular, we calculate the…

Quantum Physics · Physics 2016-02-17 Gernot Alber , Nils Trautmann

In this work we perform an ab-initio study of an ideal two-dimensional sample of 4He atoms, a model for 4He films adsorbed on several kinds of substrates. Starting from a realistic hamiltonian we face the microscopic study of the excitation…

Other Condensed Matter · Physics 2015-06-15 F. Arrigoni , E. Vitali , D. E. Galli , L. Reatto

There are successful applications of the holographic AdS/CFT correspondence to high energy and condensed matter physics. We apply the holographic approach to photosynthesis that is an important example of nontrivial quantum phenomena…

High Energy Physics - Theory · Physics 2016-04-12 Irina Aref'eva , Igor Volovich

We study spectroscopy of artificial solid-state four-level quantum system. This system is formed by two coupled superconducting flux qubits. When multiple driving frequency of the applied microwaves matches the energy difference between any…

We study theoretically the simultaneous, photo-induced two-particle excitations of strongly correlated systems on the basis of the Hubbard model. Under certain conditions specified in this work, the corre- sponding transition probability is…

Strongly Correlated Electrons · Physics 2015-05-18 B. D. Napitu , J. Berakdar

Nonlinear spectroscopic techniques using entangled photon pairs can provide an opportunity to exploit non-classical correlations encoded in two-photon wavefunctions to manipulate two-exciton wavefunctions. We propose an entangled photon…

Quantum Physics · Physics 2026-04-10 Arunangshu Debnath , Shaul Mukamel

Binary amplitude spatial light modulators, such as digital micromirror devices (DMDs), are increasingly relevant for computer generated holography due to their high refresh rates, low cost, and due to the emergence of subwavelength pixel…

Holography is a promising approach to implement the three-dimensional (3D) projection beyond the present two-dimensional technology. True 3D holography requires abilities of arbitrary 3D volume projection with high-axial resolution and…

Image and Video Processing · Electrical Eng. & Systems 2022-04-20 Byounghyo Lee , Dongyeon Kim , Seungjae Lee , Chun Chen , Byoungho Lee

The purpose of this paper is to study the interaction between a two-level system and two continuous-mode photons. Two scenarios are investigated: Case 1, how a two-level system changes the pulse shapes of two input photons propagating in a…

Quantum Physics · Physics 2019-10-14 Zhiyuan Dong , Guofeng Zhang , Nina H. Amini

According to the AdS/CFT correspondence, certain quantum many-body systems in $d$-dimensions are equivalent to gravitational theories in $(d+1)$-dimensional asymptotically AdS spacetimes. When a massless particle is sent from the AdS…

High Energy Physics - Theory · Physics 2024-06-18 Motoaki Bamba , Koji Hashimoto , Keiju Murata , Daichi Takeda , Daisuke Yamamoto

The photon-electron interactions are generally volatile and the intricate multiphysics details of photoexcited carrier dynamics are not yet distinguished. How to nonvolatile control the physical state through all-optical means and clarify…

Optics · Physics 2024-05-02 Zhen Lei , Jiawei Chang , Qiyi Zhao , Jian Zhou , Yuanyuan Huang , Qihua Xiong , Xinlong Xu

Holography can reconstruct immersive light fields for virtual and augmented reality by modulating optical wavefront. Due to huge pixel sizes, current spatial light modulators (SLMs) have small field-of-view (FOV) for holographic displays.…

We calculate holographically three-point functions of scalar operators with large dimensions at finite density and finite temperature. To achieve this, we construct new solutions that involve two isometries of the deformed internal space.…

High Energy Physics - Theory · Physics 2023-09-15 George Georgiou , Dimitrios Zoakos

We present a hybrid asymptotic/numerical method for the accurate computation of single and double layer heat potentials in two dimensions. It has been shown in previous work that simple quadrature schemes suffer from a phenomenon called…

Numerical Analysis · Mathematics 2018-03-22 Jun Wang , Leslie Greengard

We theoretically develop and experimentally demonstrate a holographic method for imaging cold atoms at the diffraction and photon shot noise limits. Aided by a double point source reference field, a simple iterative algorithm robustly…

Atomic Physics · Physics 2015-06-18 J. P. Sobol , Saijun Wu

Ultrafast imaging of photon statistics in two dimensions is a powerful tool for probing non-equilibrium and transient optical phenomena, yet it remains experimentally challenging due to the simultaneous need for high temporal resolution and…

Quantum Physics · Physics 2026-03-20 C. Hainaut , K. Ouahrouche , A. Rancon , G. Patera , C. Ouarkoub , M. Le Parquier , P. Suret , A. Amo

The non-deterministic nature of photon sources is a key limitation for single photon quantum processors. Spatial multiplexing overcomes this by enhancing the heralded single photon yield without enhancing the output noise. Here the…