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Regularization in quantum field theories
Introduction/purpose: The principal techniques of regularization schemes and their validity for gauge field theories are discussed. Methods: Schemes of dimensional regularization, Pauli–Villars and lattice regularization are discussed.
Nicola Fabiano
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Dynamical renormalization of black-hole spacetimes [PDF]
We construct a black-hole spacetime which includes the running of the gravitational coupling in a self-consistent way. Starting from a classical Schwarzschild black hole, the backreaction effects produced by the running Newton’s coupling are taken into ...
Alessia Benedetta Platania
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Photo-Induced Bandgap Renormalization Governs the Ultrafast Response of Single-Layer MoS2. [PDF]
Transition metal dichalcogenides (TMDs) are emerging as promising two-dimensional (2D) semiconductors for optoelectronic and flexible devices. However, a microscopic explanation of their photophysics, of pivotal importance for the understanding and ...
Eva A. A. Pogna+11 more
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Renormalization of Hamiltonians [PDF]
A matrix model of an asymptotically free theory with a bound state is solved using a perturbative similarity renormalization group for hamiltonians. An effective hamiltonian with a small width, calculated including the first three terms in the perturbative expansion, is projected on a small set of effective basis states. The resulting small hamiltonian
Stanisław D. Głazek, Kenneth G. Wilson
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Phenomenological Renormalization Group Methods [PDF]
Some renormalization group approaches have been proposed during the last few years which are close in spirit to the Nightingale phenomenological procedure. In essence, by exploiting the finite size scaling hypothesis, the approximate critical behavior of
Figueiredo, W.+2 more
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Holographic renormalization and supersymmetry [PDF]
70 pages; corrected ...
Genolini P. B.+3 more
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Towards a Unitary, Renormalizable, and Ultraviolet-Complete Quantum Theory of Gravity
For any fundamental quantum field theory, unitarity, renormalizability, and relativistic invariance are considered to be essential properties.
Christian F. Steinwachs
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Pavement temperature field affects pavement service life and the thermal environment the near road surface; thus, is important for sustainable pavement design.
Jiaqi Chen+3 more
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Neural Network Renormalization Group [PDF]
We present a variational renormalization group (RG) approach based on a reversible generative model with hierarchical architecture. The model performs hierarchical change-of-variables transformations from the physical space to a latent space with reduced
Shuo-Hui Li, Lei Wang
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Unstable particle's wave-function renormalization prescription [PDF]
We strictly define two set Wave-function Renormalization Constants (WRC) under the LSZ reduction formula for unstable particles at the first time.
Denner A.+3 more
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