Results 51 to 60 of about 30,484 (230)

Type‐II Dirac Fermions in Monolayer In2O: Interplay of Magnetotransport, Spin Hall Effect, and Superconductivity

open access: yesAdvanced Science, EarlyView.
First‐principles calculations reveal that monolayer In2O${\rm In}_2{\rm O}$ hosts type‐II Dirac fermions near the Fermi level, which split into Weyl points under spin‐orbit coupling. The material exhibits negative and giant magnetoresistance, a pronounced spin Hall effect, and phonon‐mediated superconductivity at 1.5 K, establishing it as a unique ...
Qing‐Bo Liu   +6 more
wiley   +1 more source

Fermion–fermion duality in 3+1 dimensions [PDF]

open access: yesAnnals of Physics, 2020
Dualities play a central role in both quantum field theories and condensed matter systems. Recently, a web of dualities has been discovered in 2+1 dimensions. Here, we propose in particular a generalization of the Son's fermion-fermion duality to 3+1 dimensions.
openaire   +4 more sources

Lattice simulation with the Majorana positivity

open access: yesEPJ Web of Conferences, 2018
While the sign problem of the Dirac fermion is conditioned by the semipositivity of a determinant, that of the Majorana fermion is conditioned by the semipositivity of a Pfaffian.
Yamamoto Arata, Hayata Tomoya
doaj   +1 more source

Casimir effect for lattice fermions

open access: yesPhysics Letters B, 2020
We propose a definition of the Casimir energy for free lattice fermions. From this definition, we study the Casimir effects for the massless or massive naive fermion, Wilson fermion, and (Möbius) domain-wall fermion in 1+1 dimensional spacetime with the ...
Tsutomu Ishikawa   +2 more
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh   +8 more
wiley   +1 more source

Discerning Fermions

open access: yesThe British Journal for the Philosophy of Science, 2008
We demonstrate that the quantum-mechanical description of composite physical systems of an arbitrary number of similar fermions in all their admissible states, mixed or pure, for all finite-dimensional Hilbert spaces, is not in conflict with Leibniz’s Principle of the Identity of Indiscernibles (PII).
Muller, F.A., Saunders, S.
openaire   +3 more sources

Fermions on AdS [PDF]

open access: yes, 2015
6 pages, 1 figure, contribution to the Proceedings of the Karl Schwarzschild Meeting (Frankfurt, July 22-26, 2013)
Ambruş, V.E., Winstanley, E.
openaire   +3 more sources

Boson-fermion pairing in a boson-fermion environment [PDF]

open access: yesPhysical Review A, 2005
Propagation of a Boson-Fermion (B-F) pair in a B-F environment is considered. The possibility of formation of stable strongly correlated B-F pairs, embedded in the continuum, is pointed out. The new Fermi gas of correlated B-F pairs shows a strongly modified Fermi surface.
Storozhenko, A.   +4 more
openaire   +4 more sources

Field-induced density wave in the heavy-fermion compound CeRhIn5 [PDF]

open access: yes
Strong electron correlations lead to a variety of distinct ground states, such as magnetism, charge order or superconductivity. Understanding the competitive or cooperative interplay between neighbouring phases is an outstanding challenge in physics ...
Balicas, Luis   +6 more
core   +2 more sources

Producing a new fermion in coherent elastic neutrino-nucleus scattering: from neutrino mass to dark matter

open access: yesJournal of High Energy Physics, 2018
We consider the production of a new MeV-scale fermion in coherent elastic neutrino-nucleus scattering. The effect on the measurable nucleon recoil spectrum is calculated. Assuming that the new fermion couples to neutrinos and quarks via a singlet scalar,
Vedran Brdar   +2 more
doaj   +1 more source

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