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We present two methods for computing dimensionally-regulated NRQCD heavy-quarkonium matrix elements that are related to the second derivative of the heavy-quarkonium wave function at the origin. The first method makes use of a hard-cutoff…

高能物理 - 唯象学 · 物理学 2008-11-26 Geoffrey T. Bodwin , Daekyoung Kang , Jungil Lee

We introduce Decision Tree Decoders (DTDs), which rely only on the sparsity of the binary check matrix, making them broadly applicable for decoding any quantum low-density parity-check (qLDPC) code and fault-tolerant quantum circuits. DTDs…

量子物理 · 物理学 2025-02-25 Kai R. Ott , Bence Hetényi , Michael E. Beverland

The use of color in QR codes brings extra data capacity, but also inflicts tremendous challenges on the decoding process due to chromatic distortion, cross-channel color interference and illumination variation. Particularly, we further…

计算机视觉与模式识别 · 计算机科学 2018-10-17 Zhibo Yang , Huanle Xu , Jianyuan Deng , Chen Change Loy , Wing Cheong Lau

We present a new family of quantum low-density parity-check codes, which we call radial codes, obtained from the lifted product of a specific subset of classical quasi-cyclic codes. The codes are defined using a pair of integers $(r,s)$ and…

量子物理 · 物理学 2026-04-21 Thomas R. Scruby , Timo Hillmann , Joschka Roffe

The single-particle spectral function measures the density of electronic states (DOS) in a material as a function of both momentum and energy, providing central insights into phenomena such as superconductivity and Mott insulators. While…

介观与纳米尺度物理 · 物理学 2017-11-22 Joonho Jang , Heun Mo Yoo , Loren Pfeiffer , Ken West , K. W. Baldwin , Raymond Ashoori

A behavior of the nucleon structure functions in the resonance region is investigated. Expressions for resonance production form factors, dependent on photon virtuality $Q^2$, which have correct threshold behavior and take into account…

高能物理 - 唯象学 · 物理学 2007-05-23 V. V. Davidovsky , B. V. Struminsky

The coherent dynamics of a quantum mechanical two-level system passing through an anti-crossing of two energy levels can give rise to Landau-Zener-St\"uckelberg-Majorana (LZSM) interference. LZSM interference spectroscopy has proven to be a…

Dual Comb Spectroscopy proved its versatile capabilities in molecular fingerprinting in different spectral regions, but not yet in the ultraviolet (UV). Unlocking this spectral window would expand fingerprinting to the electronic energy…

Quantum phase is not a direct observable and is usually determined by interferometric methods. We present a method to map complete electron wave functions, including internal quantum phase information, from measured single-state probability…

介观与纳米尺度物理 · 物理学 2008-03-19 Christopher R. Moon , Laila S. Mattos , Brian K. Foster , Gabriel Zeltzer , Wonhee Ko , Hari C. Manoharan

The orbital, spin and valley degrees of freedom in silicon quantum dots support many modes of spin qubit operation. However, it is generally challenging to obtain information about the energy level spectrum over large ranges of parameter…

介观与纳米尺度物理 · 物理学 2026-04-06 Heun Mo Yoo , Tanner M. Janda , Connor Nasseraddin , Jason R. Petta

Energy spectroscopy is a powerful tool with diverse applications across various disciplines. The advent of programmable digital quantum simulators opens new possibilities for conducting spectroscopy on various models using a single device.…

Baryons containing two heavy quarks are treated in the Born-Oppenheimer approximation. Schr\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter…

高能物理 - 唯象学 · 物理学 2009-10-31 D. U. Matrasulov , M. M. Musakhanov , T. Morii

Chemical, mechanical, thermal and/or electronic properties of bulk or low-dimensional materials can be engineered by introducing structural defects to form novel functionalities. When using particles irradiation, these defects can be…

材料科学 · 物理学 2022-02-07 L. Basta , A. Moscardini , S. Veronesi , F. Bianco

This paper considers the problem of jointly designing the transmit waveforms and weights for a frequency diverse array (FDA) in a spectrally congested environment in which unintentional spectral interferences exist. Exploiting the…

信号处理 · 电气工程与系统科学 2022-12-21 Wenkai Jia , Andreas Jakobsson , Wen-Qin Wang

We present a comparison between independent computer codes, modeling the physics and chemistry of interstellar photon dominated regions (PDRs). Our goal was to understand the mutual differences in the PDR codes and their effects on the…

Symmetry provides a powerful machinery to classify, interpret, and understand quantum-mechanical theories and results. However, most contemporary quantum chemistry packages lack the ability to handle degeneracy and symmetry breaking…

化学物理 · 物理学 2024-02-28 Bang C. Huynh , Meilani Wibowo-Teale , Andrew M. Wibowo-Teale

Let $p$ be a prime and $\mathbb{F}_q$ be the finite field of order $q=p^m$. In this paper, we study $\mathbb{F}_q\mathcal{R}$-skew cyclic codes where $\mathcal{R}=\mathbb{F}_q+u\mathbb{F}_q$ with $u^2=u$. To characterize…

信息论 · 计算机科学 2023-05-18 Om Prakash , Shikha Patel , Habibul Islam

We demonstrate that halogenated methane 2D-Terahertz Terahertz Raman (2D-TTR) spectra are determined by the complicated structure of the instrument response function (IRF) along $f_1$ and by the molecular coherences along $f_2$.…

化学物理 · 物理学 2020-07-20 Griffin Mead , Haw-Wei Lin , Ioan-Bogdan Magdău , Thomas F. Miller , Geoffrey A. Blake

This thesis is devoted to ab initio calculations of ground and excited state properties of different systems within density functional theory and time dependent density functional theory. From the numerical point of view we implemented an…

材料科学 · 物理学 2012-11-28 Lucia Caramella

We employ the time-dependent R-Matrix (TDRM) method to calculate anisotropy parameters for positive and negative sidebands of selected harmonics generated by two-color two-photon above threshold ionization of argon. We consider odd…

原子物理 · 物理学 2013-10-24 Steven Hutchinson , Michael A. Lysaght , Hugo W. van der Hart