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We present a resonant-mode, transverse-field, radio-frequency (rf) neutron spin flipper design that uses high-temperature superconducting films to ensure sharp transitions between uniform magnetic field regions. Resonant mode allows for low…

Orthogonal time-frequency space (OTFS) modulation is a recently proposed waveform for efficient data transfer in high-speed vehicular scenarios. The use of rectangular pulse shape in OTFS results in high out of band (OoB) radiation, which…

Information Theory · Computer Science 2019-10-24 Shashank Tiwari , Suvra Sekhar Das

Modern radar systems require low phase noise and long term phase-stable radar carrier signals for high-resolution imaging, micro-Doppler signatures applications. High stable signal generation through conventional crystal followed by…

Signal Processing · Electrical Eng. & Systems 2019-10-22 Vishal Maheshwari , K. Sreenivasulu , Mohit Kumar , Kishan Sharma

Unlike the simplest (Hooke's law spring) oscillator, where the restoring force is in magnitude proportional to the displacement; the yo-yo oscillator has a constant force-magnitude. In other words, its potential energy function is linear,…

Physics Education · Physics 2007-05-23 Randall D. Peters

We propose how to achieve quantum nonreciprocity via unconventional photon blockade (UPB) in a compound device consisting of an optical harmonic resonator and a spinning optomechanical resonator. We show that, even with an extremely weak…

Quantum Physics · Physics 2019-05-31 Baijun Li , Ran Huang , Xun-Wei Xu , Adam Miranowicz , Hui Jing

We present a novel mode of operation for Duffing-type nonlinear microelectromechanical (MEMS) devices whereby a self-sustained multi-frequency output is generated. This new librator regime creates a limit cycle around a dynamical fixed…

Mesoscale and Nanoscale Physics · Physics 2021-06-10 Samer Houri , Motoki Asano , Hajime Okamoto , Hiroshi Yamaguchi

Many combinatorial optimization problems can be mapped to finding the ground states of the corresponding Ising Hamiltonians. The physical systems that can solve optimization problems in this way, namely Ising machines, have been attracting…

Emerging Technologies · Computer Science 2017-10-16 Tianshi Wang , Jaijeet Roychowdhury

Programmable photonic integrated circuits are expected to play an increasingly important role to enable high-bandwidth optical interconnects, and large-scale in-memory computing as needed to support the rise of artificial intelligence and…

Optics · Physics 2024-12-11 Jayita Dutta , Rui Chen , Virat Tara , Arka MAjumdar

We present the measurement of entanglement between twin beams generated with a doubly resonant optical parameter oscillator (OPO) based on four-wave mixing in hot $^{85}$Rb vapor above threshold. This is the first measurement of…

We propose and experimentally demonstrate a novel type of polarization rotator which is capable of rotating the polarization plane of a linearly polarized light at any desired angle in either broad or narrow spectral bandwidth. The rotator…

Optics · Physics 2015-02-04 Emiliya Dimova , Andon Rangelov , Elica Kyoseva

Coupled-bunch instabilities excited by the interaction of the particle beam with its surroundings can seriously limit the performance of circular particle accelerators. These instabilities can be cured by the use of active feedback systems…

Accelerator Physics · Physics 2016-01-21 M. Lonza , H. Schmickler

We propose a new type of locally interacting quantum circuits which are generated by unitary interactions round-a-face (IRF). Specifically, we discuss a set (or manifold) of dual-unitary IRFs with local Hilbert space dimension $d$…

Statistical Mechanics · Physics 2021-09-15 Tomaz Prosen

(RFT) allows very high-Q active mode resonators, promising crystal-less monolithic clock generation for mmWave systems. However, there is a strong need for design of mmWave oscillators that utilize the high-Q of active-mode RFT (AM-RFT)…

Signal Processing · Electrical Eng. & Systems 2021-07-06 Abhishek Srivastava , Baibhab Chatterjee , Udit Rawat , Yanbo He , Dana Weinstein , Shreyas Sen

As radiofrequency filtering plays a vital role in electromagnetic devices and systems, recently photonic techniques have been intensively studied to implement radiofrequency filters to harness wide frequency coverage, large instantaneous…

Optics · Physics 2017-11-22 Peixuan Li , Xihua Zou , Wei Pan , Lianshan Yan , Shilong Pan

In the process of finding high-performance organic semiconductors (OSCs), it is of paramount importance in material development to identify important functional units that play key roles in material performance and subsequently establish…

Materials Science · Physics 2022-11-04 Xinyue Zhang , Genwang Wei , Ye Sheng , Jiong Yang , Caichao Ye , Wenqing Zhang

We experimentally demonstrate a new class of optomechanical nonlinearities in weakly damped micromechanical resonators, arising from the interplay between the Duffing nonlinearity, intermodal coupling, and thermal fluctuations. Within the…

Entrainment experiments on the vertebrate segmentation clock have revealed that embryonic oscillators actively change their internal frequency to adapt to the driving signal. This is neither consistent with a one-dimensional clock model nor…

Biological Physics · Physics 2024-08-27 Christian Mauffette Denis , Paul François

The Optimal Power Flow (OPF) problem is pivotal for power system operations, guiding generator output and power distribution to meet demand at minimized costs, while adhering to physical and engineering constraints. The integration of…

Machine Learning · Computer Science 2023-11-27 Chen Li , Alexander Kies , Kai Zhou , Markus Schlott , Omar El Sayed , Mariia Bilousova , Horst Stoecker

A numerical analysis on the computational capability of physical reservoir computing utilizing a spin-torque oscillator with two free layers is reported. Conventional spintronics devices usually consist of two ferromagnets, where the…

Mesoscale and Nanoscale Physics · Physics 2023-02-09 Terufumi Yamaguchi , Sumito Tsunegi , Kohei Nakajima , Tomohiro Taniguchi

We introduce a general purpose algorithm for rapidly computing certain types of oscillatory integrals which frequently arise in problems connected to wave propagation and general hyperbolic equations. The problem is to evaluate numerically…

Numerical Analysis · Mathematics 2007-05-23 Emmanuel Candes , Laurent Demanet , Lexing Ying