Results 51 to 60 of about 4,198 (192)

Frame independence of exclusive amplitudes in light-front quantization [PDF]

Physical Review D, 2000
While the particle-number-conserving convolution formalism established in the Drell-Yan-West reference frame is frequently used to compute exclusive amplitudes in the light-front quantization, this formalism is limited to only those frames where the light-front helicities are not changed and the good (plus) component of the current remains unmixed. For
Ji, C. -R., Mitchell, C.
openaire   +2 more sources

Gluon skewed generalized parton distributions of proton from a light-front Hamiltonian approach

Physics Letters B
We calculate all leading-twist gluon generalized parton distributions (GPDs) inside the proton at nonzero skewness using the basis light-front quantization framework.
Pengxiang Zhang, Yiping Liu, Siqi Xu, Chandan Mondal, Xingbo Zhao, James P. Vary   +5 more
doaj   +1 more source

Applications of Basis Light-Front Quantization to QED [PDF]

Nuclear Physics B - Proceedings Supplements, 2014
Hamiltonian light-front quantum field theory provides a framework for calculating both static and dynamic properties of strongly interacting relativistic systems. Invariant masses, correlated parton amplitudes and time-dependent scattering amplitudes, possibly with strong external time-dependent fields, represent a few of the important applications. By
Vary, James P., Zhao, Xingbo, Ilderton, Anton, Honkanen, Heli, Maris, Pieter, Brodsky, Stanley J.   +5 more
openaire   +2 more sources

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Three-dimensional imaging of proton in basis light-front quantization [PDF]

Hadron Spectroscopy and Structure, 2020
We employ an effective Hamiltonian that includes the transverse and longitudinal confinement and the one-gluon exchange interaction with fixed coupling constant. By solving the eigenvalue equation in basis light-front quantization (BLFQ), we generate the light-front wavefunctions (LFWFs) for the nucleon in the valence quark Fock space.
Xu, Siqi, Mondal, Chandan, Lan, Jiangshan, Zhao, Xingbo, Li, Yang, Vary, James P.   +5 more
openaire   +2 more sources

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

Advanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong, Xieyu Chen, Aarthy Nagarajan, Yi Yang, Zhihao Wang, Rui Yu, Chuang Zheng, Chunmei Ouyang, Xueqian Zhang, Tun Cao, Ranjan Singh, Zhen Tian   +11 more
wiley   +1 more source

Light-front view of the axial anomaly [PDF]

, 1995
Motivated by an apparent puzzle of the light-front vacua incompatible with the axial anomaly, we have considered the two-dimensional massless Schwinger model for an arbitrary interpolating angle of the quantization surface.
Rey, Soo-Jong, Ji, Chueng-Ryong
core   +1 more source

Comparison of two Minkowski-space approaches to heavy quarkonia

European Physical Journal C: Particles and Fields, 2017
In this work we compare mass spectra and decay constants obtained from two recent, independent, and fully relativistic approaches to the quarkonium bound-state problem: the Basis Light-Front Quantization approach, where light-front wave functions are ...
Sofia Leitão, Yang Li, Pieter Maris, M. T. Peña, Alfred Stadler, James P. Vary, Elmar P. Biernat   +6 more
doaj   +1 more source

Multimodal Human–Robot Interaction Using Human Pose Estimation and Local Large Language Models

Advanced Robotics Research, EarlyView.
A multimodal human–robot interaction framework integrates human pose estimation (HPE) and a large language model (LLM) for gesture‐ and voice‐based robot control. Speech‐to‐text (STT) enables voice command interpretation, while a safety‐aware arbitration mechanism prioritizes gesture input for rapid intervention.
Nasiru Aboki, Ilche Georgievski, Marco Aiello   +2 more
wiley   +1 more source

Relativistic bound states within Basis Light-Front Quantization

, 2020
We investigate the relativistic bound states in the non-perturbative regime with the light-front Hamiltonian formalism. Our studies focus on two systems, the relativistic Yukawa model and the light unflavored mesons.
Qian, Wenyang
core   +2 more sources