Results 121 to 130 of about 397,717 (356)

Polymer quantization of the free scalar field and its classical limit

, 2010
Building on prior work, a generally covariant reformulation of free scalar field theory on the flat Lorentzian cylinder is quantized using Loop Quantum Gravity (LQG) type `polymer' representations.
Alok Laddha, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Giesel K, Giulini D, Husain V Kreienbuehl A, Immirzi G, Kaminski W, Kaminski W, Madhavan Varadarajan, Perez A, Sahlmann H, See for example Merzbacher E, Thiemann T, Thiemann T, Varadarajan M   +17 more
core   +1 more source

Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP2S6

Advanced Functional Materials, EarlyView.
This study reveals 2D character of the spin dynamics in CuCrP2S6, as well as complex field dependence of collective excitations in the antiferromagnetically ordered state. Their remarkable tuning from the antiferromagnetic to the ferromagnetic type with magnetic field, together with the non‐degeneracy of the magnon gaps favorable for the induction of ...
Joyal John Abraham, Yaqian Guo, Yuliia Shemerliuk, Sebastian Selter, Saicharan Aswartham, Kranthi Kumar Bestha, Laura T. Corredor, Anja U. B. Wolter, Olga Kataeva, Luka Rogić, Noah Somun, Damjan Pelc, Oleg Janson, Jeroen van den Brink, Bernd Büchner, Vladislav Kataev, Alexey Alfonsov   +16 more
wiley   +1 more source

The light bound states of N = 1 $$ \mathcal{N}=1 $$ supersymmetric SU(3) Yang-Mills theory on the lattice

Journal of High Energy Physics, 2018
In this article we summarise our results from numerical simulations of N = 1 $$ \mathcal{N}=1 $$ supersymmetric Yang-Mills theory with gauge group SU(3). We use the formulation of Curci and Veneziano with clover-improved Wilson fermions.
Sajid Ali, Georg Bergner, Henning Gerber, Pietro Giudice, Istvan Montvay, Gernot Münster, Stefano Piemonte, Philipp Scior   +7 more
doaj   +1 more source

Phase diagram of the fully frustrated transverse-field Ising model on the honeycomb lattice

, 2010
Motivated by the current interest in the quantum dimer model on the triangular lattice, we investigate the phase diagram of the closely related fully-frustrated transverse field Ising model on the honeycomb lattice using classical and semi-classical ...
Coletta, T., Coletta, T., Korshunov, S. E., Korshunov, S. E., Mila, F., Mila, F., Picon, J-D, Picon, J-D   +7 more
core   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

3d N = 4 $$ \mathcal{N}=4 $$ super-Yang-Mills on a lattice

Journal of High Energy Physics, 2018
In this paper we explore a new approach to studying three-dimensional N = 4 $$ \mathcal{N}=4 $$ super-Yang-Mills on a lattice. Our strategy is to complexify the Donaldson-Witten twist of four-dimensional N = 2 $$ \mathcal{N}=2 $$ super-Yang-Mills to make
Joel Giedt, Arthur E. Lipstein
doaj   +1 more source

Quantum Link Lattice Field Theory

, 2018
Presentation from Next Steps in Quantum Science for HEP, Fermilab, 12-14 Sep ...
openaire   +1 more source

Magnetic‐Field Dependent VB− Spin Decoherence in Hexagonal Boron Nitrides: A First‐Principles Study

Advanced Functional Materials, EarlyView.
This study investigates the decoherence of the VB− defect in h‐BN under external magnetic fields using first‐principles quantum many‐body simulations. A transition boundary distinguishing distinct decoherence regimes is identified, with its dependence on isotopic composition.
Jaewook Lee, Hyeonsu Kim, Huijin Park, Hosung Seo   +3 more
wiley   +1 more source

Variational analysis of low-lying states in supersymmetric Yang-Mills theory

Journal of High Energy Physics, 2019
We have calculated the masses of bound states numerically in N $$ \mathcal{N} $$ = 1 supersymmetric Yang-Mills theory with gauge group SU(2). Using the suitably optimised variational method with an operator basis consisting of smeared Wilson loops and ...
Sajid Ali, Georg Bergner, Henning Gerber, Simon Kuberski, Istvan Montvay, Gernot Münster, Stefano Piemonte, Philipp Scior   +7 more
doaj   +1 more source

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source