Results 101 to 110 of about 261,846 (326)

Non-perturbative definition of the QCD energy-momentum tensor on the lattice

Journal of High Energy Physics, 2020
We present a strategy to define non-perturbatively the energy-momentum tensor in Quantum Chromodynamics (QCD) which satisfies the appropriate Ward identities and has the right trace anomaly.
Mattia Dalla Brida, Leonardo Giusti, Michele Pepe   +2 more
doaj   +1 more source

Patterned Assembly of Transition Metal Dichalcogenide/Graphene Heterostructures via Direct Laser Writing

Advanced Functional Materials, EarlyView.
The fabrication of patterned transition metal dichalcogenide (TMD)/graphene heterostructures via direct laser writing reveals new interface chemistry and enables efficient, customizable assembly. Selective laser irradiation of functionalized TMD/graphene triggers localized reactions, forming chemically modified interfaces.
Xin Chen, Stefan Wolff, Sofiia Zuieva, Robert Schusterbauer, Rida Shaikh, Christian E. Halbig, Anton Habel, Roland Gillen, Kathrin C. Knirsch, Ievgen Donskyi, Siegfried Eigler, Janina Maultzsch, Andreas Hirsch   +12 more
wiley   +1 more source

On the Triviality of Textbook Quantum Electrodynamics [PDF]

, 2000
By adding a small, irrelevant four fermi interaction to the action of lattice Quantum Electrodynamics (QED), the theory can be simulated with massless quarks in a vacuum free of lattice monopoles. This allows an ab initio high precision, controlled study
Azcoiti, Azcoiti, Azcoiti, Cohen, Dagotto, Duane, Duane, Gockeler, Gockeler, Gottlieb, Hands, Itzykson, John B. Kogut, Kim, Kocić, Kogut, Kogut, Kogut, Maria-Paola Lombardo, Rosenstein, S. Kim   +20 more
core   +2 more sources

Quantum Link Lattice Field Theory

, 2018
Presentation from Next Steps in Quantum Science for HEP, Fermilab, 12-14 Sep ...
openaire   +2 more sources

High‐Entropy Magnetism of Murunskite

Advanced Functional Materials, EarlyView.
The study of murunskite (K2FeCu3S4) reveals that its magnetic and orbital order emerges in a simple I4/mmm crystal structure with complete disorder in the transition metal positions. Mixed‐valence Fe ions randomly occupy 1/4 of the tetrahedral sites, with the remaining 3/4 being filled by non‐magnetic Cu+ ions.
Davor Tolj, Priyanka Reddy, Ivica Živković, Luka Akšamović, Jian Rui Soh, Kamila Komȩdera, Izabela Biało, Naveen Kumar Chogondahalli Muniraju, Trpimir Ivšić, Mario Novak, Oksana Zaharko, Clemens Ritter, Thomas LaGrange, Wojciech Tabiś, Ivo Batistić, László Forró, Henrik M. Rønnow, Denis K. Sunko, Neven Barišić   +18 more
wiley   +1 more source

Determination of the properties of vector mesons in external magnetic field by quenched SU(3) lattice QCD

Journal of High Energy Physics, 2017
We investigate the ground state energies of vector ρ ± and K ±∗ mesons depending on the magnetic field value in the SU(3) lattice gauge theory. It has been shown that the energy of a vector particle depends on its spin projection on the field axis.
E.V. Luschevskaya, O.E. Solovjeva, O.V. Teryaev   +2 more
doaj   +1 more source

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

Complex Langevin simulation of a random matrix model at nonzero chemical potential

Journal of High Energy Physics, 2018
In this paper we test the complex Langevin algorithm for numerical simulations of a random matrix model of QCD with a first order phase transition to a phase of finite baryon density. We observe that a naive implementation of the algorithm leads to phase
J. Bloch, J. Glesaaen, J. J. M. Verbaarschot, S. Zafeiropoulos   +3 more
doaj   +1 more source

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

The Quantized $O(1,2)/O(2)\times Z_2$ Sigma Model Has No Continuum Limit in Four Dimensions. I. Theoretical Framework

, 1992
The nonlinear sigma model for which the field takes its values in the coset space $O(1,2)/O(2)\times Z_2$ is similar to quantum gravity in being perturbatively nonrenormalizable and having a noncompact curved configuration space.
Arie Kapulkin, Bryce DeWitt, Eric Myers, G. D. Mostow, J. L. deLyra, Jorge L. deLyra, Joseph Polchinski, R. S. Palais, Rob Harrington, See Kit Foong, T. E. Gallivan   +10 more
core   +1 more source