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Smart contact lenses are at the forefront of integrating microelectronics, biomedical engineering, and optics into wearable technologies. This work addresses a key obstacle in their development: achieving autonomous power without…

Systems and Control · Electrical Eng. & Systems 2025-05-22 Patrice Salzenstein , Blandine Guichardaz , Aya Maroua Bessou , Ekaterina Pavlyuchenko , Martine Comte , Maxim V. Pogumirsky

This letter investigates a novel wireless-powered quantum optical communication system, in which a batteryless quantum transmitter harvests energy from a classical radio-frequency source to transmit quantum coherent states. The transmission…

Information Theory · Computer Science 2025-09-10 Ioannis Krikidis

Non-radiative coupling between conductive coils is a candidate mechanism for wireless energy transfer applications. In this paper, we propose a power relay system based on a near-field metamaterial superlens, and present a thorough…

Classical Physics · Physics 2011-07-25 Yaroslav Urzhumov , David R. Smith

We investigate numerically the use of a negative-permeability "perfect lens" for enhancing wireless power transfer between two current carrying coils. The negative permeability slab serves to focus the flux generated in the source coil to…

Materials Science · Physics 2012-04-03 Da Huang , Yaroslav Urzhumov , David R. Smith , Koon Hoo Teo , Jinyun Zhang

Recent advancements in metamaterials have yielded the possibility of a wireless solution to improve signal-to-noise ratio (SNR) in magnetic resonance imaging (MRI). Unlike traditional closely packed local coil arrays with rigid designs and…

Medical Physics · Physics 2023-12-18 Xia Zhu , Ke Wu , Stephan W. Anderson , Xin Zhang

Wireless communication using electro-magnetic (EM) fields acts as the backbone for information exchange among wearable devices around the human body. However, for Implanted devices, EM fields incur high amount of absorption in the tissue,…

Neurons and Cognition · Quantitative Biology 2023-07-06 Baibhab Chatterjee , Mayukh Nath , Gaurav Kumar K , Shulan Xiao , Krishna Jayant , Shreyas Sen

Receiver sensitivity is a particularly important metric in optical communication links operating at low signal-to-noise ratios (SNRs), for example in deep-space communication, since it directly limits the maximum achievable reach and data…

Signal Processing · Electrical Eng. & Systems 2021-04-23 Ravikiran Kakarla , Mikael Mazur , Jochen Schröder , Peter A. Andrekson

Integrated sensing, communication, and control (ISCC) has emerged as a key enabler for low-altitude wireless networks with enhanced adaptability through resource allocation co-design and intelligent environment awareness. However, dynamic…

Information Theory · Computer Science 2025-08-12 Yike Wang , Zhike Wu , Jiang Chen , Chunjie Wang , Xuhui Zhang , Yanyan Shen

We present a fiber-based continuous-variable quantum key distribution system. In the scheme, a quantum signal of two non-orthogonal weak optical coherent states is sent through a fiber-based quantum channel. The receiver simultaneously…

Magnetoquasistatic wireless power transfer can deliver substantial power to mobile devices over near-field links. Room-scale implementations, such as quasistatic cavity resonators, extend this capability over large enclosed volumes, but…

Applied Physics · Physics 2026-03-31 Takuya Sasatani , Alanson P. Sample , Yoshihiro Kawahara

Wireless radio frequency coils provide a promising solution for clinical MR applications due to several benefits, such as cable-free connection and compatibility with MR platforms of different vendors. Namely, for the purpose of clinical…

Entanglement resources can increase transmission rates substantially. Unfortunately, entanglement is a fragile resource that is quickly degraded by decoherence effects. In order to generate entanglement for optical communication, the…

Quantum Physics · Physics 2023-03-07 Uzi Pereg , Christian Deppe , Holger Boche

Superconducting digital circuits are a promising approach to build packaged-level integrated systems with high energy-efficiency and computational density. In such systems, performance of the data link between chips mounted on a multi-chip…

We report an efficient energy-time entangled photon-pair source based on four-wave mixing in a CMOS-compatible silicon photonics ring resonator. Thanks to suitable optimization, the source shows a large spectral brightness of 400\,pairs of…

Nonclassical correlations between the quadrature-phase amplitudes of two spatially separated optical beams are exploited to realize a two-channel quantum communication experiment with a high degree of immunity to interception. For this…

Quantum Physics · Physics 2009-11-06 S. F. Pereira , Z. Y. Ou , H. J. Kimble

Magnetoquasistatic wireless power transfer can be used to charge and power electronic devices such as smartphones and small home appliances. However, existing coil-based transmitters, which are composed of wire conductors, have a limited…

Applied Physics · Physics 2025-02-11 Takuya Sasatani , Alanson P. Sample , Yoshihiro Kawahara

Data collection and analysis from multiple implant nodes in humans can provide targeted medicine and treatment strategies that can prevent many chronic diseases. This data can be collected for a long time and processed using artificial…

Signal Processing · Electrical Eng. & Systems 2023-11-16 A. Khaleghi , A. Hasanvand , I. Balasingham

The purpose of this paper is to introduce a communication model for Large Intelligent Surfaces (LIS). A LIS is modelled as a collection of tiny closely spaced antenna elements. Due to the proximity of the elements, mutual coupling arises.…

Information Theory · Computer Science 2020-05-05 Robin Jess Williams , Elisabeth De Carvalho , Thomas L. Marzetta

Based on the interaction between a three-level system and a microtoroidal resonator, we present a scheme for long-distance quantum communication in which entanglement generation with near 0.5 success probability and swaps can be implemented…

Quantum Physics · Physics 2008-09-24 Fang-Yu Hong , Shi-Jie Xiong

Ultra-reliability and low-latency are pivotal requirements of the new 6th generation of communication systems (xURLLC). Over the past years, to increase throughput, adaptive active antennas were introduced in advanced wireless…

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