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Unified formalism for Thermal Quantum Field Theories: A geometric viewpoint [PDF]

open access: yesAnnals of Physics, 2018
In this paper we study a unified formalism for Thermal Quantum Field Theories, i.e., for the Matsubara approach, Thermo Field Dynamics and the Path Ordered Method. To do so, we employ a mechanism akin to the Hawking effect which explores a relationship between the concept of temperature and spacetimes endowed with event-horizons.
Massimo Blasone, Petr Jizba
exaly   +7 more sources

Quantum fluctuation and dissipation in holographic theories: A unifying study scheme [PDF]

open access: yesJournal of High Energy Physics, 2018
Motivated by the wide range of applicability of the fluctuation and dissipation phenomena in non-equilibrium systems, we provide a universal study scheme for the dissipation of the energy and the corresponding Brownian motion analysis of massive ...
Dimitrios Giataganas   +2 more
doaj   +3 more sources

General Resource Theories in Quantum Mechanics and Beyond: Operational Characterization via Discrimination Tasks

open access: yesPhysical Review X, 2019
We establish an operational characterization of general convex resource theories—describing the resource content of not only states but also measurements and channels, both within quantum mechanics and in general probabilistic theories (GPTs)—in the ...
Ryuji Takagi, Bartosz Regula
doaj   +2 more sources

A unified theory of quantum holonomies [PDF]

open access: yesAnnals of Physics, 2009
24pages; To be published in Ann. Phys.
Tanaka, Atushi, Cheon, Taksu
openaire   +3 more sources

Quantum magnetic monopole condensate

open access: yesCommunications Physics, 2021
Magnetic monopoles are predicted by grand unified theories but remain elusive as elementary particles. Here, extending electric-magnetic symmetry onto full quantum behavior, the authors demonstrate that magnetic monopoles emerge as excitations in ...
M. C. Diamantini   +2 more
doaj   +1 more source

Multiscale Space-Time Ansatz for Correlation Functions of Quantum Systems Based on Quantics Tensor Trains

open access: yesPhysical Review X, 2023
The correlation functions of quantum systems—central objects in quantum field theories—are defined in high-dimensional space-time domains. Their numerical treatment thus suffers from the curse of dimensionality, which hinders the application of ...
Hiroshi Shinaoka   +6 more
doaj   +1 more source

Scaling solution for field-dependent gauge couplings in quantum gravity

open access: yesNuclear Physics B, 2022
Quantum gravity can determine the dependence of gauge couplings in a scalar field, which is related to possible fifth forces and time varying fundamental “constants”. This prediction is based on the scaling solution of functional flow equations.
C. Wetterich
doaj   +1 more source

General Quantum Resource Theories: Distillation, Formation and Consistent Resource Measures [PDF]

open access: yesQuantum, 2020
Quantum resource theories (QRTs) provide a unified theoretical framework for understanding inherent quantum-mechanical properties that serve as resources in quantum information processing, but resources motivated by physics may possess structure whose ...
Kohdai Kuroiwa, Hayata Yamasaki
doaj   +1 more source

Does a Theory of Everything Exist?

open access: yesФилософия и космология, 2021
Since Einstein’s failure to define a Grand Unified Theory, physicists have pursued a comprehensive theory explaining nature, a Theory of Everything. But because General Relativity, Quantum Field Theory, and Cosmology have little in common, defining one ...
James R Johnson
doaj   +1 more source

Quaternionic quantum mechanics for N = 1, 2, 4 supersymmetry

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2022
Background Quaternions have emerged as powerful tools in higher-dimensional quantum mechanics as they provide homogeneous four-dimensional structure in quantum field theories, offer compact representations, and incorporate spin naturally.
Seema Rawat, A. S. Rawat
doaj   +1 more source

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