Results 91 to 100 of about 285,524 (264)

History operators in quantum mechanics

, 2019
It is convenient to describe a quantum system at all times by means of a "history operator" $C$, encoding measurements and unitary time evolution between measurements.
Castellani, Leonardo
core   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

Advanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park, Saeed Pourasad, Jinhong Mun, Arunkumar Chitteth Rajan, Tae Hyeon Park, Anand Rohit, Mohammad Zafari, Tan‐Lien Pham, Eunjae Jung, Bonseung Koo, Miran Ha, Gi Beom Sim, Hyun Gyu Park, Won Woong Choi, Kwanghyeon Jo, Soohaeng Yoo Willow, David ChangMo Yang, Chang Woo Myung, Geunsik Lee, Kwang S. Kim   +19 more
wiley   +1 more source

Relativistic particle on light-front

European Physical Journal C: Particles and Fields
We construct one-particle states as unitary, irreducible representations of Poincare group in front form, characterized by a special null vector, dubbed the reference vector. We demonstrate that this construction has massive-massless continuation.
Junmou Chen
doaj   +1 more source

Can Weak Measurement Lend Empirical Support to Quantum Retrocausality?

EPJ Web of Conferences, 2013
Quantum weak measurement is presented as shedding new light on the retrocausality question. It is shown to leave a system almost unaffected while gathering information about it.
Aharonov Yakir, Cohen Eliahu, Grossman Doron, Elitzur Avshalom C.   +3 more
doaj   +1 more source

A Simple game simulating quantum measurements of qubits

, 2018
Games are useful tools for introducing new concepts to students. This paper describes a competitive two-player game for sophomore students in a modern physics survey course or junior/senior students in an introductory quantum mechanics course to build ...
Corcovilos, Theodore A.
core   +1 more source

Machine Learning‐Assisted Second‐Order Perturbation Theory for Chemical Potential Correction Toward Hubbard U Determination

Advanced Intelligent Discovery, EarlyView.
In this work, the Doubao large language model (LLM) is involved in the formula derivation processes for Hubbard U determination regarding the second‐order perturbations of the chemical potential. The core ML tool is optimized for physical domain knowledge, which is not limited to parameter prediction but rather serves as an interactive physical theory ...
Mingzi Sun, Tong Wu, Baian Chen, Zikang Li, Qiuyang Lu, Lu Lu, Hon Ho Wong, Cheuk Hei Chan, Bolong Huang   +8 more
wiley   +1 more source

Electroweak splitting functions in the Standard Model and beyond

Journal of High Energy Physics
We derive quasi-collinear factorization formulas in generic spontaneously broken gauge theories with scalars, fermions, and vector bosons. Specifically, we obtain polarized leading-order splitting functions for all possible final-state and initial-state ...
Stefan Dittmaier, Max Reyer
doaj   +1 more source

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

Advanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows, G. Zhang, S. Anand, Z. Chen, J. Lin, A. Desai, S. Martiniani, F. Caravelli   +7 more
wiley   +1 more source

Bridging classical data assimilation and optimal transport: the 3D-Var case [PDF]

Nonlinear Processes in Geophysics
Because optimal transport (OT) acts as displacement interpolation in physical space rather than as interpolation in value space, it can avoid double-penalty errors generated by mislocations of geophysical fields.
M. Bocquet, P. J. Vanderbecken, A. Farchi, J. Dumont Le Brazidec, Y. Roustan   +4 more
doaj   +1 more source

Low-energy Scattering of $(D^{*}\bar{D}^{*})^\pm$ System and the Resonance-like Structure $Z_c(4025)$

, 2015
In this paper, low-energy scattering of the $(D^{*}\bar{D}^{*})^\pm$ meson system is studied within L\"uscher's finite-size formalism using $N_{f}=2$ twisted mass gauge field configurations.
Chen, Ying, Gong, Ming, Lei, Yu-Hong, Li, Ning, Liang, Jian, Liu, Chuan, Liu, Jin-Long, Liu, Yong-Fu, Liu, Yu-Bin, Liu, Zhaofeng, Ma, Jian-Ping, Wang, Zhan-Lin, Zhang, Jian-Bo   +12 more
core   +1 more source