Results 71 to 80 of about 876,408 (341)

Point-form quantum field theory

, 2007
We examine canonical quantization of relativistic field theories on the forward hyperboloid, a Lorentz-invariant surface of the form $x_\mu x^\mu = \tau^2$.
Bakamjian, Berger, Boffi, Brodsky, Coester, di Sessa, di Sessa, Dirac, E.P. Biernat, Fubini, Girardello, Glantschnig, Glozman, Gromes, Itzykson, Ketov, Klink, Klink, Klink, Krassnigg, Krassnigg, Leutwyler, Lev, MacDowell, Melde, Melde, Melde, S. Zelzer, Schweber, Schwinger, Sommerfield, Tomonaga, W. Schweiger, W.H. Klink, Wald   +34 more
core   +1 more source

KAM Theorem and Quantum Field Theory [PDF]

, 1998
We give a new proof of the KAM theorem for analytic Hamiltonians. The proof is inspired by a quantum field theory formulation of the problem and is based on a renormalization group argument treating the small denominators inductively scale by scale.
Bricmont, J., Gawedzki, K., Kupiainen, A.   +2 more
core   +3 more sources

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

Advanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye, Taeyoung Jeong, Seungjae Yoon, Dohyun Kim, Yunjae Kim, Cheol Seong Hwang, Jung‐Hae Choi   +6 more
wiley   +1 more source

Electron-nuclear decoupling at a spin clock transition

Communications Physics, 2023
Magnetic molecules have chemically tunable electronic states that could be used for quantum technologies, but they are often surrounded by a nuclear spin bath causing decoherence. In this study, the authors experimentally investigate the electron-nuclear
Krishnendu Kundu, Jia Chen, Silas Hoffman, Jonathan Marbey, Dorsa Komijani, Yan Duan, Alejandro Gaita-Ariño, John Stanton, Xiaoguang Zhang, Hai-Ping Cheng, Stephen Hill   +10 more
doaj   +1 more source

Finslerian quantum field theory [PDF]

Nonlinear Analysis: Theory, Methods & Applications, 2005
Invited plenary lecture at the Fourth World Congress of Nonlinear Analysts in the session: Applications of Finsler Differential Geometry (in Engineering, Physics and Biology), July 5, 2004, Orlando ...
openaire   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Effective dynamics of quantum fluctuations in field theory: with applications to cosmology

Journal of High Energy Physics
We develop a novel framework for describing quantum fluctuations in field theory, with a focus on cosmological applications. Our method uniquely circumvents the use of operator/Hilbert-space formalism, instead relying on a systematic treatment of ...
Ding Ding, Yu Zhao, Yidun Wan
doaj   +1 more source

Nambu–Jona-Lasinio model in a parallel electromagnetic field

Physics Letters B, 2018
We explore the features of the UA(1) and chiral symmetry breaking of the Nambu–Jona-Lasinio model without the Kobayashi–Maskawa–'t Hooft determinant term in the presence of a parallel electromagnetic field. We show that the electromagnetic chiral anomaly
Lingxiao Wang, Gaoqing Cao, Xu-Guang Huang, Pengfei Zhuang   +3 more
doaj   +1 more source

T T ¯ $$ T\overline{T} $$ -deformation and long range spin chains

Journal of High Energy Physics, 2020
We point out that two classes of deformations of integrable models, developed completely independently, have deep connections and share the same algebraic origin. One class includes the T T ¯ $$ T\overline{T} $$ -deformation of 1+1 dimensional integrable
Balázs Pozsgay, Yunfeng Jiang, Gábor Takács   +2 more
doaj   +1 more source

Jets and quantum field theory [PDF]

Physics Letters B, 1996
We discuss quantum-field-theoretic interpretation of the family of observables (the so-called C-algebra) introduced in [ F.V.Tkachov: Preprint FERMILAB-PUB-95/191-T] for a systematic description of multijet structure of multiparticle final states at high energies.
Sveshnikov, N. A., Tkachov, F. V.
openaire   +2 more sources