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We investigate the single-photon scattering spectra of a giant atom coupled to a one dimensional waveguide via multiple connection points or a continuous coupling region. Using a full quantum mechanical method, we obtain the general…

Quantum Physics · Physics 2022-01-14 Q. Y. Cai , W. Z. Jia

It is of fundamental interest in controlling the light-matter interaction for a long time in the field of quantum information processing. However, usual excitation with the propagating photon can hardly excite a localized state of light…

Quantum Physics · Physics 2022-07-08 Han Xiao , Luojia Wang , Zhenghong Li , Xianfeng Chen , Luqi Yuan

Deflection of atoms in \Lambda-type configuration passing through two crossed standing light waves is proposed for probing and visualization of atomic superposition states. For this goal, we use both the large-dispersive and Raman-resonant…

Quantum Physics · Physics 2013-07-23 Gor A. Abovyan , Gagik P. Djotyan , Gagik Yu. Kryuchkyan

Here, the influence of resonance photon-atom scattering on the atom interference pattern at the exit of a three-grating Mach-Zehnder interferometer is studied. It is assumed that the scattering process does not destroy the atomic wave…

Quantum Physics · Physics 2010-10-19 M. Bozic , D. Arsenovic , A. S. Sanz , M. Davidovic

We present a fully passive method for implementing a quantum phase gate between two photons travelling in a one-dimensional wave guide. The gate is based on chirally coupled emitters in a three-level $V$ configuration, which only interact…

Quantum Physics · Physics 2022-09-27 Björn Schrinski , Miren Lamaison , Anders S. Sørensen

Atom scattering is becoming recognized as a sensitive probe of the electron-phonon interaction parameter $\lambda$ at metal and metal-overlayer surfaces. Here, the theory is developed linking $\lambda$ to the thermal attenuation of atom…

Superconductivity · Physics 2020-05-20 G. Benedek , J. R. Manson , S. Miret-Artés

The scattering phase shift of an electron transferred through a quantum dot is studied within a model Hamiltonian, accounting for both the electron--electron interaction in the dot and a finite temperature. It is shown that, unlike in an…

Condensed Matter · Physics 2009-10-28 Yuval Oreg , Yuval Gefen

A cascade of two-level superconducting artificial atoms -- a source and a probe -- strongly coupled to a semi-infinite waveguide is a promising tool for observing nontrivial phenomena in quantum nonlinear optics. The probe atom can scatter…

Systems of atoms coupled to a single or few waveguide modes provide a testbed for physically and practically interesting interference effects. We consider the dynamics of a pair of atoms, approximated as two-level quantum emitters, coupled…

Quantum Physics · Physics 2018-12-18 Paolo Facchi , Saverio Pascazio , Francesco V. Pepe , Domenico Pomarico

Scattering processes have played a crucial role in the development of quantum theory. In the field of optics, scattering phase shifts have been utilized to unveil interesting forms of light-matter interactions. Here, we investigate the…

The probability of emission of a single photon via Raman scattering of laser pulse on the three-level $\Lambda$ - type atom in microcavity is studied. The duration of the pulse is considered to be short enough, so that the hyperfine…

Quantum Physics · Physics 2015-05-14 V. A. Reshetov , I. V. Yevseyev

We investigate the scattered field from $N$ identical two-level atoms resonantly driven by a weak coherent field in a one-dimensional waveguide. For atoms separated by the drive wavelength, increasing the number of atoms progressively…

Quantum Physics · Physics 2025-06-06 Zeidan Zeidan , Therese Karmstrand , Maryam Khanahmadi , Göran Johansson

We report the observation of entanglement between a single trapped atom and a single photon at a wavelength suitable for low-loss communication over large distances, thereby achieving a crucial step towards long range quantum networks. To…

Waveguide quantum electrodynamics (WQED) provides a powerful platform for exploring quantum optical phenomena by enhancing atom-photon interactions through photon confinement in a waveguide. Here we investigate the photon-scattering…

Quantum Physics · Physics 2026-03-31 Yanjin Yue , Rui-Yang Gong , Shengyong Li , Ze-Liang Xiang

We analytically treat the scattering of two counter-propagating photons on a two-level emitter embedded in an optical waveguide. We find that the non-linearity of the emitter can give rise to significant pulse-dependent directional…

Quantum Physics · Physics 2015-06-24 Anders Nysteen , Dara P. S. McCutcheon , Jesper Mørk

We theoretically study the optical properties of an ensemble of two-level atoms coupled to a one-dimensional waveguide. In our model, the atoms are randomly located in the lattice sites along the one-dimensional waveguide. The results…

Quantum Physics · Physics 2021-02-03 Guo-Zhu Song , Jin-Liang Guo , Wei Nie , Leong-Chuan Kwek , Gui-Lu Long

The scattering of a flying photon by a two-level system ultrastrongly coupled to a one-dimensional photonic waveguide is studied numerically. The photonic medium is modeled as an array of coupled cavities and the whole system is analyzed…

We investigate the single-photon propagation in the one-dimensional waveguide coupled to $N$ two-level atoms. For a waveguide coupled to $N$ distant atoms, the transparency can be induced by coherent interaction at resonance for an $even$…

Quantum Physics · Physics 2013-04-04 Wei-Bin Yan , Heng Fan

In one-dimensional optical setups, light-matter interaction is drastically enhanced by the interference between the incident and scattered fields. Particularly, in the impedance-matched \Lambda-type three-level systems, a single photon…

Quantum Physics · Physics 2015-06-16 Kazuki Koshino , Kunihiro Inomata , Tsuyoshi Yamamoto , Yasunobu Nakamura

Scattering properties of a single plasm on interacting with three non-equally spaced quantum dots coupled to one-dimensional surface plasmonic waveguide is investigated theoretically via the real-space approach. It is demonstrated that the…

Optics · Physics 2014-09-17 Nam-Chol Kim , Myong-Chol Ko