Results 111 to 120 of about 5,915,931 (293)

Hadronic energy-momentum tensor revisited [PDF]

open access: yes
Everything gravitates and they do so through the energy-momentum tensor (EMT). However, there is no consensus on how to define the EMT of a hadron, e.g. the proton, the fundamental building blocks of the visible world.
Vary, James P., Wang, Qun, Li, Yang
core   +1 more source

Vacuum Stress between Conducting Plates for Neuman Conditions [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics
In [1], we have found that the curved spacetime version of the vacuum stress between conducting plates was first done in flat spacetime by Brown and Maclay.
Borzoo Nazari
doaj   +1 more source

Van der Waals Heterostructures for Next‐Generation Spintronics: Multiferroic‐Mediated Magnetoelectric Properties

open access: yesAdvanced Science, EarlyView.
As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee   +3 more
wiley   +1 more source

Multiphoton Quantum Reservoirs For Robust Multidimensional Computing

open access: yesAdvanced Science, EarlyView.
Projective measurements reveal hidden multidimensional quantum networks within classical multiphoton fields, enabling robust quantum reservoirs for room‐temperature quantum simulation, prediction, and information processing. These networks transform noisy classical photonic platforms into scalable quantum computational architectures.
Mingyuan Hong   +10 more
wiley   +1 more source

On the characterization of energy-momentum tensors

open access: yesGeneral Relativity and Gravitation, 1979
It is shown that the form of the gravitational field equations is predetermined for a wide class of field theories by the choice of the external field equations.
openaire   +3 more sources

Energy-Momentum Tensor Improvements in Two Dimensions [PDF]

open access: yes, 1996
We discuss some aspects of the two-dimensional scalar field, considering particularly the action for the conformal anomaly as an “improved” gravitational coupling, and the possibility of introducing a dual coupling, which provides a “chiral” energy ...
Deser, S., Jackiw, R.
core  

China's Low‐Carbon Energy Transition Over the Past Two Decades: Experiences and Implications

open access: yesAdvanced Science, EarlyView.
China's low‐carbon energy transition features a brief decline and subsequent rebound in coal consumption, alongside the rapid expansion of renewable energy. This study develops a stage‐based analytical framework to explain this evolution from the perspectives of economic development, energy security, and environmental sustainability, revealing how ...
Yu Liu   +3 more
wiley   +1 more source

Strained Graphene as Pristine Graphene with a Deformed Momentum Operator

open access: yesCondensed Matter
We explore the equivalence between the low-energy dynamics of strained graphene and a quantum mechanical framework for the 2D Dirac equation in flat space with a deformed momentum operator.
David Valenzuela   +2 more
doaj   +1 more source

Seeing the Chemistry of Biomolecular Condensates: In Situ Mapping of Composition and Water Content

open access: yesAdvanced Science, EarlyView.
Raman hyperspectral imaging combined with spectral phasor analysis enables a label‐free quantification of proteins, polymers and water density within individual biomolecular condensates. By transforming complex vibrational fingerprints into intuitive compositional maps, the approach reveals the high water content and structural heterogeneity of ...
E. Sabri   +3 more
wiley   +1 more source

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