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Amorphous solids, i.e., systems which feature well-defined short-range properties but lack long-range order, constitute an important research topic in condensed matter. While their microscopic structure is known to differ from their…

Quantum Gases · Physics 2024-08-23 Sergi Julià-Farré , Joseph Vovrosh , Alexandre Dauphin

We present a Rydberg atom-based microwave electric field sensor that achieves extended dynamic range and enhanced sensitivity across a broad bandwidth. By characterizing the Autler-Townes (AT) splitting induced by a single-tone microwave…

Atomic Physics · Physics 2026-01-28 Hsuan-Jui Su , Shao-Cheng Fang , Ting-An Li , Chen-Hao Chang , Yu-Chi Chen , Yi-Hsin Chen

Modern MIMO communication systems are almost exclusively designed under the assumption of locally plane wavefronts over antenna arrays. This is known as the far-field approximation and is soundly justified at sub-6-GHz frequencies at most…

Information Theory · Computer Science 2023-02-28 Giacomo Bacci , Luca Sanguinetti , Emil Björnson

We investigate polyatomic ultralong-range Rydberg molecules consisting of three ground state atoms bound to a Rydberg atom via $s$- and $p$-wave interactions. By employing the finite basis set representation of the unperturbed Rydberg…

Atomic Physics · Physics 2016-08-03 Christian Fey , Markus Kurz , Peter Schmelcher

Current cellular systems achieve high spectral efficiency through Massive MIMO, which leverages an abundance of antennas to create favorable propagation conditions for multiuser spatial multiplexing. Looking towards future networks, the…

Information Theory · Computer Science 2026-01-14 Emil Björnson , Amna Irshad , Özlem Tugfe Demir , Giuseppe Thadeu Freitas de Abreu , Alva Kosasih , Vitaly Petrov

Controlling strongly interacting many-body systems enables the creation of tailored quantum matter, with properties transcending those based solely on single particle physics. Atomic ensembles which are optically driven to a Rydberg state…

High-sensitive measurement of radio-frequency (RF) electric field is available via the electromagnetically induced transparency (EIT) effect of Rydberg atom at room-temperature, which has been developed to be a promising atomic RF receiver.…

Atomic Physics · Physics 2019-03-27 Zhenfei Song , Wanfeng Zhang , Hongping Liu , Xiaochi Liu , Haiyang Zou , Jie Zhang , Jifeng Qu

The performance of holographic multiple-input multiple-output (MIMO) communications, employing two-dimensional (2-D) planar antenna arrays, is typically compromised by finite degrees-of-freedom (DOF) stemming from limited array size. The…

To meet the future demand for huge traffic volume of wireless data service, the research on the fifth generation (5G) mobile communication systems has been undertaken in recent years. It is expected that the spectral and energy efficiencies…

Information Theory · Computer Science 2016-05-12 Dongming Wang , Yu Zhang , Hao Wei , Xiaohu You , Xiqi Gao , Jiangzhou Wang

Rydberg atoms have been shown remarkable performance in sensing microwave field. The sensitivity of such an electrometer based on optical readout of atomic ensemble has been demonstrated to approach the photon-shot-noise limit. However, the…

Quantum Physics · Physics 2023-07-12 Shuhe Wu , Dong Zhang , Zhengchun Li , Minwei Shi , Peiyu Yang , Jinxian Guo , Wei Du , Guzhi Bao , Weiping Zhang

This paper considers a deterministic physical model of massive multiple-input multiple-output (MIMO) systems with uniform linear antenna arrays. It is known that the maximum spatial degrees of freedom is achieved by spacing antenna elements…

Information Theory · Computer Science 2016-01-22 Keigo Takeuchi

We theoretically study a scheme to develop an atomic based MW interferometry using the Rydberg states in Rb. Unlike the traditional MW interferometry, this scheme is not based upon the electrical circuits, hence the sensitivity of the phase…

Atomic Physics · Physics 2017-05-24 Dangka Shylla , Elijah Ogaro , Kanhaiya Pandey

In this paper, we proposed a hybrid simultaneous wireless information and power transfer (SWIPT)-enabled multiple-input multiple-output (MIMO) architecture, where the base station (BS) uses a conventional RF transmitter for downlink…

Signal Processing · Electrical Eng. & Systems 2025-10-20 Qihao Peng , Qu Luo , Zheng Chu , Neng Ye , Hong Ren , Cunhua Pan , Lixia Xiao , Pei Xiao

Rydberg atoms held in optical tweezer arrays combine vibrational and electronic degrees of freedom which can be coupled and manipulated at a microscopic level. This opens opportunities for the quantum simulation of artificial molecular…

Quantum Physics · Physics 2025-10-21 Simon Euchner , Igor Lesanovsky

We present a comprehensive numerical investigation into the radio frequency (RF) field behavior within miniaturized all-glass and hybrid vapor cell geometries designed for Rydberg atom-based electrometry. Using full-vector finite element…

Assembled arrays of individual atoms with Rydberg-mediated interactions provide a powerful platform for the simulation of many-body spin Hamiltonians as well as the implementation of universal gate-based quantum information processing. We…

This review summarizes experimental works performed over the last decade by several groups on the manipulation of a few individual interacting Rydberg atoms. These studies establish arrays of single Rydberg atoms as a promising platform for…

Quantum Physics · Physics 2016-07-12 Antoine Browaeys , Daniel Barredo , Thierry Lahaye

Multiple input multiple output (MIMO) system transmission is a popular diversity technique to improve the reliability of a communication system where transmitter, communication channel and receiver are the important elements. Data…

Signal Processing · Electrical Eng. & Systems 2020-05-06 Subrato Bharati , Prajoy Podder , Niketa Gandhi , Ajith Abraham

Multi-user Multiple-Input Multiple-Output (MIMO) offers big advantages over conventional point-to-point MIMO: it works with cheap single-antenna terminals, a rich scattering environment is not required, and resource allocation is simplified…

Information Theory · Computer Science 2016-11-18 Erik G. Larsson , Ove Edfors , Fredrik Tufvesson , Thomas L. Marzetta

We present an object-oriented Python library for computation of properties of highly-excited Rydberg states of alkali atoms. These include single-body effects such as dipole matrix elements, excited-state lifetimes (radiative and black-body…

Atomic Physics · Physics 2018-05-21 N. Šibalić , J. D. Pritchard , C. S. Adams , K. J. Weatherill