Results 141 to 150 of about 1,082 (220)

Superselection rules, quantum error correction, and quantum chromodynamics

Journal of High Energy Physics
We investigate the relationship between superselection rules and quantum error correcting codes. We demonstrate that the existence of a superselection rule implies the Knill-Laflamme condition in quantum error correction.
Ning Bao, ChunJun Cao, Aidan Chatwin-Davies, Gong Cheng, Guanyu Zhu   +4 more
doaj   +1 more source

Effective field theory bootstrap, large-N χPT and holographic QCD

Journal of High Energy Physics
Abstract We review the effective field theory (EFT) bootstrap by formulating it as an infinite-dimensional semidefinite program (SDP), built from the crossing symmetric sum rules and the S-matrix primal ansatz. We apply the program to study the large-N chiral perturbation theory (χPT) and observe excellent convergence of EFT bounds
openaire   +4 more sources

An effective field theory for thermal QCD with 2+1 flavours

We write a long-distance effective field theory (EFT) for QCD at finite temperature just below the crossover temperature $T_c$. The low energy constants (LECs) of this EFT are obtained from lattice measurements of the screening mass of pions at two temperatures for $N_f=2+1$ using lattice results obtained at physical values of pion and Kaon masses, and
Gupta, Sourendu, Sen, Pritam, Sharma, Rishi   +2 more
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Exotic States in Quarkonium Physics: Effective Theories of Heavy Mesonic Molecules and an AdS/QCD Model of Hybrid Quarkonium [PDF]

, 2013
Quantum chromodynamics (QCD), the theory of quarks and gluons, is known to bethe correct description of strong nuclear interactions. At high energy and momenta,one can use QCD directly to compute quantities of physical interest related to thestrong force.
Powell, Joshua
core  

Renormalización de una Teoría Efectiva

Momento, 2008
The effective field theories are the best tool to describe that behavior at low energy of a theory known, for example the Quantum Chromodynamics (QCD), but the greater difficulty of these theories is its renormalization. It is necessary doing it order by
J. M. Cabarcas, J. Morales Aponte
doaj  

On determining α s (m Z ) from dijets in e + e − thrust

Journal of High Energy Physics
We update a previous N3LL′+ O α s 3 $$ \mathcal{O}\left({\alpha}_s^3\right) $$ determination of the strong coupling from a global fit to thrust data by including newly available perturbative ingredients, upgrading the renormalization scales to include a ...
Miguel A. Benitez, André H. Hoang, Vicent Mateu, Iain W. Stewart, Gherardo Vita   +4 more
doaj   +1 more source

Heavy Quarkonium and QCD Non Relativistic Effective field Theories

, 2002
QCD nonrelativistic effective field theories (NREFT) are the modern and most suitable frame to describe heavy quarkonium properties. In this talk I summarize few relevant concepts and some interesting physical applications of NREFT.
openaire   +2 more sources

Heavy quarks in effective field theories [PDF]

, 2009
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.Cataloged from PDF version of thesis.Includes bibliographical references (p.
Jain, Ambar
core  

Double soft current at one-loop in QCD

Journal of High Energy Physics
We investigate the soft behavior of QCD amplitudes involving multiple Wilson lines and derive compact analytic expressions for double soft gluon and double soft quark emissions at one loop.
Yu Jiao Zhu
doaj   +1 more source

Strongly interacting matter exhibits deconfined behavior in massive neutron stars. [PDF]

Nat Commun, 2023
Annala E, Gorda T, Hirvonen J, Komoltsev O, Kurkela A, Nättilä J, Vuorinen A.   +6 more
europepmc   +1 more source