Results 81 to 90 of about 416,793 (324)

Simulating thimble regularization of lattice quantum field theories [PDF]

Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), 2017
Monte Carlo simulations of lattice quantum field theories on Lefschetz thimbles are non trivial. We discuss a new Monte Carlo algorithm based on the idea of computing contributions to the functional integral which come from complete flow lines. The latter are the steepest ascent paths attached to critical points, i.e.
Di Renzo, Francesco, Eruzzi, Giovanni
openaire   +2 more sources

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Qubit Regularization of Quantum Field Theories [PDF]

Proceedings of The 41st International Symposium on Lattice Field Theory — PoS(LATTICE2024)
To study quantum field theories on a quantum computer, we must begin with Hamiltonians defined on a finite-dimensional Hilbert space and then take appropriate limits.
S. Chandrasekharan
semanticscholar   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

The SU(3) spin model with chemical potential by series expansion techniques

Journal of High Energy Physics, 2020
The SU(3) spin model with chemical potential corresponds to a simplified version of QCD with static quarks in the strong coupling regime. It has been studied previously as a testing ground for new methods aiming to overcome the sign problem of lattice ...
Jangho Kim, Anh Quang Pham, Owe Philipsen, Jonas Scheunert   +3 more
doaj   +1 more source

Algebraic vortex liquid theory of a quantum antiferromagnet on the kagome lattice [PDF]

, 2007
There is growing evidence from both experiment and numerical studies that low half-odd integer quantum spins on a kagome lattice with predominant antiferromagnetic near neighbor interactions do not order magnetically or break lattice symmetries even at ...
J. Alicea, M. B. Hastings, Matthew P. A. Fisher, O. I. Motrunich, S. Ryu, V. Borokhov   +5 more
core   +2 more sources

Quantum field theory for the chiral clock transition in one spatial dimension. [PDF]

Physical review B, 2018
We describe the quantum phase transition in the N -state chiral clock model in spatial dimension d = 1 . With couplings chosen to preserve time-reversal and spatial inversion symmetries, such a model is in the universality class of recent experimental ...
Seth Whitsitt, R. Samajdar, S. Sachdev
semanticscholar   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Does the XY Model have an integrable continuum limit? [PDF]

, 2001
The quantum field theory describing the massive O(2) nonlinear sigma-model is investigated through two non-perturbative constructions: The form factor bootstrap based on integrability and the lattice formulation as the XY model.
A. Patrascioiu, Amit, Arnaudon, Babujian, Balog, Balog, Balog, Banks, Butera, Butera, Campostrini, Campostrini, Coleman, E. Seiler, Edwards, F. Niedermayer, Falcioni, Felder, Fröhlich, Gomez, Gupta, Gupta, Gupta, Hasenbusch, Hasenbusch, J. Balog, Janke, Janke, Karowski, Kenna, Kenna, Klassen, Kosterlitz, Kosterlitz, Lashkevich, LeClair, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, M. Niedermaier, Michael, Niedermaier, Niedermayer, P. Weisz, Patrascioiu, Patrascioiu, Patrascioiu, Patrascioiu, Pelissetto, Pelissetto, Polyakov, Reshetikhin, Smirnov, Smirnov, Swendsen, Tarasov, Wolff, Wolff, Woo, Zamolodchikov, Zamolodchikov   +62 more
core   +2 more sources

Pion-less effective field theory for atomic nuclei and lattice nuclei [PDF]

Physical Review C, 2017
We compute the medium-mass nuclei 16O and 40Ca using pion-less effective field theory (EFT) at next-to-leading order (NLO). The low-energy coefficients of the EFT Hamiltonian are adjusted to experimental data for nuclei with mass numbers A=2 and 3, or ...
Aaina Bansal, S. Binder, A. Ekström, G. Hagen, G. Jansen, Thomas Papenbrock   +5 more
semanticscholar   +1 more source