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We propose a systematic coset construction of non-equilibrium effective field theories (EFTs) governing the long-distance and late-time dynamics of relativistic, finite-temperature condensed matter systems. Our non-equilibrium coset…

高能物理 - 理论 · 物理学 2020-09-21 Michael J. Landry

A massive, nonrelativistic scalar field in an expanding spacetime is usually approximated by a pressureless perfect fluid, which leads to the standard conclusion that such a field can play the role of cold dark matter. In this paper, we…

宇宙学与河外天体物理 · 物理学 2020-07-14 Borna Salehian , Mohammad Hossein Namjoo , David I. Kaiser

We investigate the relativistic effective field theory (EFT) describing a non-dissipative gravitating continuum. In addition to ordinary continua, namely solids and fluids, we find an extraordinary more symmetric continuum, aether. In…

高能物理 - 理论 · 物理学 2022-09-07 Katsuki Aoki , Mohammad Ali Gorji , Shinji Mukohyama , Kazufumi Takahashi

We discuss effective field theory treatments of the problem of three particles interacting via short-range forces. One case of such a system is neutron-deuteron scattering at low energies. We demonstrate that in attractive channels the…

核理论 · 物理学 2009-11-10 I. R. Afnan , Daniel R. Phillips

Experiments in particle physics have hitherto failed to produce any significant evidence for the many explicit models of physics beyond the Standard Model (BSM) that had been proposed over the past decades. As a result, physicists have…

物理学史与哲学 · 物理学 2022-01-24 Philip Bechtle , Cristin Chall , Martin King , Michael Kraemer , Peter Maettig , Michael Stoeltzner

An accurate description of nuclear matter starting from free-space nuclear forces has been an elusive goal. The complexity of the system makes approximations inevitable, so the challenge is to find a consistent truncation scheme with…

核理论 · 物理学 2009-10-31 R. J. Furnstahl , James V. Steele , Negussie Tirfessa

[Abridged] This review article presents the progress made over the last decade, since the introduction of effective field theories (EFTs) into post-Newtonian (PN) gravity. These have been put forward in the context of gravitational waves…

高能物理 - 理论 · 物理学 2020-06-19 Michèle Levi

We examine effective field theories (EFTs) with a continuum sector in the presence of gravity. We first explain, via arguments based on central charge and species scale, that an EFT with a free continuum cannot consistently couple to…

高能物理 - 唯象学 · 物理学 2023-05-31 Sylvain Fichet , Eugenio Megias , Mariano Quiros

We explore the impact of loop effects on positivity in effective field theories emerging in the infrared from unitary and causal microscopic dynamics. Focusing on massless particles coupled to gravity, we address the treatment of…

高能物理 - 理论 · 物理学 2025-06-24 Carl Beadle , Giulia Isabella , Davide Perrone , Sara Ricossa , Francesco Riva , Francesco Serra

We construct an effective Quantum Field Theory for the wrapping effects in 1+1 dimensional models of factorised scattering. The recently developed graph-theoretical approach to TBA gives the perturbative desctiption of this QFT. For the…

高能物理 - 理论 · 物理学 2022-05-06 Ivan Kostov

We review the nuclear forces currently in use, i.e., the high-precision NN potentials of the 1990's and the nuclear two- and many-body forces based upon chiral effective field theory (EFT). We argue that the EFT approach is superior to any…

核理论 · 物理学 2009-11-11 R. Machleidt , D. R. Entem

Theoretical data obtained from physically sensible field and string theory models suggest that gravitational Effective Field Theories (EFTs) live on islands that are tiny compared to current general bounds determined from unitarity,…

高能物理 - 理论 · 物理学 2023-02-08 Zvi Bern , Enrico Herrmann , Dimitrios Kosmopoulos , Radu Roiban

Implications of general properties of quantum field theory, such as causality, unitarity, and locality include constraints on the couplings of the effective field theory (EFT) coefficients. These constraints follow from the connections…

高能物理 - 理论 · 物理学 2025-06-17 Guangzhuo Peng , Long-Qi Shao , Anna Tokareva , Yongjun Xu

Guided by previous non-perturbative lattice simulations of a two-step electroweak phase transition, we reformulate the perturbative analysis of equilibrium thermodynamics for generic cosmological phase transitions in terms of effective…

高能物理 - 唯象学 · 物理学 2023-09-06 Oliver Gould , Tuomas V. I. Tenkanen

The apparent dependence of nuclear matter observables on off-shell properties of the two-nucleon potential is re-examined in the context of the effective field theory (EFT) approach. Finite density (thermodynamic) observables are invariant…

核理论 · 物理学 2009-11-06 R. J. Furnstahl , H. -W. Hammer , Negussie Tirfessa

This article reviews unitarization methods essential for extending Effective Field Theories (EFTs) beyond their perturbative limits, particularly in hadronic and electroweak (EW) sectors. Perturbative EFTs, like Chiral Perturbation Theory…

高能物理 - 唯象学 · 物理学 2026-03-04 Alexandre Salas-Bernárdez

An effective quantum field theory (QFT) with a manifest UV/IR connection, so as to be valid for arbitrarily large volumes, can successfully be applied to the cosmological dark energy problem as well as the cosmological constant (CC)…

广义相对论与量子宇宙学 · 物理学 2009-11-19 R. Horvat

We develop an Effective Field Theory (EFT) formalism to solve for the conservative dynamics of binary systems in gravity via Post-Minkowskian (PM) scattering data. Our framework combines a systematic EFT approach to compute the deflection…

高能物理 - 理论 · 物理学 2020-12-30 Gregor Kälin , Rafael A. Porto

The implications of an effective field theory (EFT) interpretation of nuclear mean-field phenomenology are reviewed.

核理论 · 物理学 2009-10-31 R. J. Furnstahl , Brian D. Serot

We derive the conservative dynamics of non-spinning binaries to third Post-Minkowskian order, using the Effective Field Theory (EFT) approach introduced in [2006.01184] together with the Boundary-to-Bound dictionary developed in…

高能物理 - 理论 · 物理学 2021-01-04 Gregor Kälin , Zhengwen Liu , Rafael A. Porto