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We present a theoretical study on the efficiency variation of coherent light conversion based on optical memories using the electromagnetically induced transparency (EIT) protocol in an atomic system with degenerate Zeeman states. Based on…

Quantum Physics · Physics 2020-01-01 Pin-Ju Tsai , Yan-Cheng Wei , Bo-Han Wu , Sheng-Xiang Lin , Ying-Cheng Chen

We discuss the use of electromagnetically modified absorption to achieve selective excitation in atoms: that is, the laser excitation of one transition while avoiding simultaneously exciting another transition whose frequency is the same as…

Quantum Physics · Physics 2007-05-23 M. J. McDonnell , D. N. Stacey , A. M. Steane

We examine the possibility of storing and retrieving a single photon using electromagnetically induced transparency (EIT). We consider the theory of a proof of principle two-photon interference experiment, in which an atomic vapor cell is…

Quantum Physics · Physics 2007-05-23 Jianming Wen , Morton H. Rubin

We study the electromagnetically induced transparency (EIT) effect with two individually addressed four-level Rydberg atoms subjected to the interatomic van der Waals interaction. We derive an effectively atomic Raman transition model where…

Quantum Physics · Physics 2014-10-15 Huaizhi Wu , Meng-Meng Bian , Li-Tuo Shen , Rong-Xin Chen , Zhen-Biao Yang , Shi-Biao Zheng

Electromagnetically induced transparency (EIT) in $\Lambda$-type atomic systems underpins quantum technologies such as high-fidelity memory and nonlinear optics, but conventional setups face intrinsic limitations. Standard geometries of…

Quantum Physics · Physics 2026-01-05 Thi Phuong Anh Nguyen , Le Phuong Hoang , Xuan Binh Cao

We present an experimental proposal to achieve a strong photon blockade by employing electromagnetically induced transparency (EIT) with single alkaline-earth-metal atom trapped in an optical cavity. In the presence of optical Stark shift,…

Quantum Physics · Physics 2021-08-02 Jing Tang , Yuangang Deng , Chaohong Lee

Electrical Impedance Tomography (EIT) is a powerful imaging modality widely used in medical diagnostics, industrial monitoring, and environmental studies. The EIT inverse problem is about inferring the internal conductivity distribution of…

Image and Video Processing · Electrical Eng. & Systems 2025-08-11 Alexander Denker , Fabio Margotti , Jianfeng Ning , Kim Knudsen , Derick Nganyu Tanyu , Bangti Jin , Andreas Hauptmann , Peter Maass

We review a series of quantum memory protocols designed to store the quantum information carried by light into atomic ensembles. In particular, we show how a simple semiclassical formalism allows to gain insight into various memory…

Quantum Physics · Physics 2019-08-28 Thierry Chanelière , Gabriel Hétet , Nicolas Sangouard

Electromagnetically-induced-transparency (EIT) spectroscopy has been used as a sensitive sensor in quantum metrology applications. The sensitivity of a sensor strongly depends on the measurement precision of EIT spectrum. In this work, we…

Quantum Physics · Physics 2023-09-25 Pin-Ju Tsai , Lun-Ping Yuan , Ying-Cheng Chen

An ideal and reversible transfer technique for the quantum state between light and metastable collective states of matter is presented and analyzed in detail. The method is based on the control of photon propagation in coherently driven…

Quantum Physics · Physics 2009-11-07 M. Fleischhauer , M. D. Lukin

Electrical impedance tomography (EIT) is a non-invasive imaging method in which an unknown physical body is probed with electric currents applied on the boundary, and the internal conductivity distribution is recovered from the measured…

Numerical Analysis · Mathematics 2014-02-07 Sarah Jane Hamilton , Samuli Siltanen

We offer a general treatment of electromagnetically induced transparency (EIT) in a five level system consisting of four metastable ground states. Two additional RF/microwave fields coherently couple the two ground states of the standard…

Quantum Physics · Physics 2009-11-13 James Owen Weatherall , Christopher P. Search

We describe how electromagnetically induced transparency can arise in quadratically coupled optomechanical systems. Due to quadratic coupling the underlying optical process involves a two phonon process in optomechanical system and this two…

Quantum Physics · Physics 2015-05-20 Sumei Huang , G. S. Agarwal

We propose a new method for efficient storage and recall of non-stationary light fields, e.g. single photon time-bin qubits, in optically dense atomic ensembles. Our approach to quantum memory is based on controlled, reversible,…

Quantum Physics · Physics 2009-11-11 B. Kraus , W. Tittel , N. Gisin , M. Nilsson , S. Kroll , J. I. Cirac

Electromagnetically induced transparency (EIT) analogue in all-dielectric metamaterials with a high quality factor provides an effective route to enhance light-matter interaction at the nanoscale. In particular, the active control applied…

Optics · Physics 2020-10-15 Tingting Liu , Huaixing Wang , Chaobiao Zhou , Xiaoyun Jiang , Shuyuan Xiao

The electromagnetically induced transparency (EIT) phenomenon in a four level atomic system with tripod configuration is studied. The results show that this configuration is equivalent to the combination of two single three-level $\Lambda$…

Quantum Physics · Physics 2007-11-20 Xiao Li , Yu Liu , Hong Guo

We demonstrate electromagnetically induced transparency (EIT) in a four-level cascade-like system, where the two upper levels are Rydberg states coupled by a microwave field. A two-photon transition consisting of an off-resonant microwave…

Atomic Physics · Physics 2018-05-09 Thibault Vogt , Christian Gross , Thomas F. Gallagher , Wenhui Li

We theoretically investigate light propagation and electromagnetically induced transparency (EIT) in a quasi one-dimensional gas in which atoms interact strongly via exchange interactions. We focus on the case in which the gas is initially…

Atomic Physics · Physics 2014-08-01 Weibin Li , Daniel Viscor , Sebastian Hofferberth , Igor Lesanovsky

The implementation of electromagnetically induced transparency (EIT) in a cold Rydberg gas provides an attractive route towards strong photon--photon interactions and fully deterministic all-optical quantum information processing. In this…

Quantum Physics · Physics 2017-08-23 J. D. Pritchard , K. J. Weatherill , C. S. Adams

We study the absorption and dispersion properties of a weak tunable probe field in a four-level Y-type atomic system driven by two strong laser (coupling) fields within the framework of density matrix formalism. It is found that the probe…

Atomic Physics · Physics 2014-03-12 L. Safari , D. Iablonskyi , F. Fratini