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The kinematics of many control systems, especially in the robotics field, naturally live on smooth manifolds. Most classical state-estimation algorithms, including the extended Kalman filter, are posed on Euclidean space. Although any…

系统与控制 · 电气工程与系统科学 2023-09-13 Yixiao Ge , Pieter van Goor , Robert Mahony

Radiofrequency multipole traps have been used for some decades in cold collision experiments, and are gaining interest for precision spectroscopy due to their low mi-cromotion contribution, and the predicted unusual cold-ion structures.…

Micro-milling can effectively remove laser damage sites on a KDP (potassium dihydrogen phosphate) surface and then improve the laser damage resistance of the components. However, the repaired KDP surface could cause light propagating…

光学 · 物理学 2021-02-03 Hao Yang , Jian Cheng , Zhichao Liu , Qi Liu , Linjie Zhao , Chao Tan , Jian Wang , Mingjun Chen

We study $\Gamma_3$ quadrupole orders in a face-centered cubic lattice. The $\Gamma_3$ quadrupole moments under cubic symmetry possess a unique cubic invariant in their free energy in the uniform ($q=0$) sector and the triple-q sector for…

强关联电子 · 物理学 2023-07-06 Kazumasa Hattori , Takayuki Ishitobi , Hirokazu Tsunetsugu

Time-resolved atom interferometry, as employed in applications such as gravitational wave detection and searches for ultra-light dark matter, requires precise control over systematic effects. In this work, we investigate phase noise arising…

原子物理 · 物理学 2025-11-25 Noam Mouelle , Jeremiah Mitchell , Valerie Gibson , Ulrich Schneider

We study transmission stabilization against radiation emission in soliton-based nonlinear optical waveguides with weak linear gain-loss, cubic loss, and delayed Raman response. We show by numerical simulations with perturbed nonlinear…

光学 · 物理学 2018-08-08 Avner Peleg , Debananda Chakraborty

We have performed a numerical analysis of the structural dependence of the PCF parameters towards ultra-flat dispersion in the C-band of communication wavelength. The technique is based on regular square-lattice PCF with all the air-hole of…

光学 · 物理学 2014-12-31 Partha Sona Maji , Partha Roy Chaudhuri

We model porous membrane filters as networks of connected cylindrical pores via a random network generation protocol, and their initial pore radii via a uniform distribution of widths that vary about some mean value. We investigate the…

软凝聚态物质 · 物理学 2022-02-28 Binan Gu , Lou Kondic , Linda J. Cummings

We study the stability of cylindrical Taylor-Couette flow in the presence of combined axial and azimuthal magnetic fields, and show that adding an azimuthal field profoundly alters the previous results for purely axial fields. For small…

天体物理学 · 物理学 2009-11-13 R. Hollerbach , G. Ruediger

Characterizing the boundary layer transition to turbulence around realistic hypersonic vehicles is a challenging task due to the numerous parameters that affect the process. To address this challenge, the cone-cylinder-flare (CCF) geometry…

流体动力学 · 物理学 2023-03-30 Clément Caillaud , Mathieu Lugrin , Sébastien Esquieu , Cédric Content

(Shortened) Thermal instability of partially ionized plasma is investigated by linear perturbation analysis. According to the previous studies under the one fluid approach, the thermal instability is suppressed due to the magnetic pressure.…

天体物理学 · 物理学 2014-11-18 Tsubasa Fukue , Hideyuki Kamaya

As a metric for amplitude fluctuation of orthogonal frequency division multiplexing (OFDM) signal, cubic metric (CM) has received an increasing attention because it is more closely related to the distortion induced by nonlinear devices than…

信息论 · 计算机科学 2016-01-20 Kee-Hoon Kim , Jong-Seon No , Dong-Joon Shin

At this present scenario, the demand of the system capacity is very high in wireless network. MIMO technology is used from the last decade to provide this requirement for wireless network antenna technology. MIMO channels are mostly used…

网络与互联网体系结构 · 计算机科学 2014-10-29 Sutanu Ghosh

To increase the power of a trapped ion quantum information processor, the qubit number, gate speed, and gate fidelity must all increase. All three of these parameters are influenced by the trapping field which in turn depends on the…

量子物理 · 物理学 2025-05-15 Le Minh Anh Nguyen , Brant Bowers , Sara Mouradian

We propose a mechanism for insulator-to-metal (IM) transitions driven by the mismatch of quantized formal polarization (QFP), a symmetry-protected bulk invariant. For a material with a low-symmetry insulating phase and a high-symmetry phase…

材料科学 · 物理学 2026-04-03 Hongsheng Pang , Lixin He

We report variational and fixed-node diffusion quantum Monte Carlo (QMC) calculations of anti-ferromagnetic iron oxide (FeO) in the ground state B1 crystal structure. The goal of this study was a systematic investigation of the sensitivity…

Physical transceiver implementations for multiple-input multiple-output (MIMO) wireless communication systems suffer from transmit-RF (Tx-RF) impairments. In this paper, we study the effect on channel capacity and error-rate performance of…

信息论 · 计算机科学 2010-02-03 Christoph Studer , Markus Wenk , Andreas Burg

Both space and laboratory plasmas can be associated with static magnetic field, and the field geometry varies from uniform to non-uniform. This thesis investigates the impact of magnetic geometry on wave modes in cylindrical plasmas. The…

等离子体物理 · 物理学 2015-03-19 Lei Chang

A stack of titanium foils was irradiated with 136 MeV 136Xe to study microstructure damage and phase stability of titanium upon irradiation. X- ray diffraction, scanning electron microscopy/energy dispersive spectroscopy and atomic force…

核实验 · 物理学 2015-06-12 S. Sadi , A. Paulenova , W. Loveland , P. R. Watson , J. P. Greene , S. Zhu , G. Zinkann

The cylindrical Taylor Interpolation through FFT (TI-FFT) algorithm for computation of the near-field and far-field in the quasi-cylindrical geometry has been introduced. The modal expansion coefficient of the vector potentials ${\bf F}$…

信号处理 · 电气工程与系统科学 2020-07-06 Shaolin Liao