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The Cubic CFT can be understood as the O(3) invariant CFT perturbed by a slightly relevant operator. In this paper, we use conformal perturbation theory together with the conformal data of the O(3) vector model to compute the anomalous…

High Energy Physics - Theory · Physics 2023-11-03 Junchen Rong , Ning Su

We compute the next-to-leading correction to the scaling dimension of large-charge operators in the $3d$ critical $O(N)$ model in a double scaling limit in which both $N$ and the operator charge $Q$ are taken to be large. When $Q \gg N$ our…

High Energy Physics - Theory · Physics 2024-09-12 Nicola Andrea Dondi , Giacomo Sberveglieri

We compute the lowest operator dimension $\Delta(J;D)$ at large global charge $J$ in the $O(2)$ Wilson-Fisher model in $D=4-\epsilon$ dimensions, to leading order in both $1/J$ and $\epsilon$. The final result for $\Delta(J;D)$ in the…

High Energy Physics - Theory · Physics 2019-09-04 Masataka Watanabe

We study the one-dimensional complex conformal manifold that controls the infrared dynamics of a three-dimensional $\mathcal{N}=2$ supersymmetric theory of three chiral superfields with a cubic superpotential. Two special points on this…

High Energy Physics - Theory · Physics 2018-04-04 Marco Baggio , Nikolay Bobev , Shai M. Chester , Edoardo Lauria , Silviu S. Pufu

In this article we analyze the efficiency of operations based on transferring charge from a quantum dot (QD) to two coupled topological superconductors, which can be used for performing nonabelian operations on Majorana bound states (MBSs).…

Mesoscale and Nanoscale Physics · Physics 2020-02-26 R. Seoane Souto , K. Flensberg , M. Leijnse

We provide the leading near conformal corrections on a cylinder to the scaling dimension $\Delta_Q^\ast$ of fixed isospin charge $Q$ operators defined at the lower boundary of the Quantum Chromodynamics conformal window: \begin{equation}…

High Energy Physics - Theory · Physics 2024-01-17 Jahmall Bersini , Alessandra D'Alise , Clelia Gambardella , Francesco Sannino

We perform the first computation of phase-transition parameters to cubic order in $\lambda\sim m^2/T^2$, where $m$ is the scalar mass and $T$ is the temperature, in a simple model resembling the Higgs sector of the SMEFT. We use dimensional…

High Energy Physics - Phenomenology · Physics 2025-05-21 Mikael Chala , Luis Gil , Zhe Ren

Various phase transitions in models for coupled charge-density waves are investigated by means of the $\epsilon$-expansion, mean-field theory, and Monte Carlo simulations. At zero temperature the effective action for the system with…

Strongly Correlated Electrons · Physics 2009-11-10 Minchul Lee , Eun-Ah Kim , Jong Soo Lim , M. Y. Choi

We initiate the conformal bootstrap study of Quantum Electrodynamics in $2+1$ space-time dimensions (QED$_{3}$) with $N$ flavors of charged fermions by focusing on the 4-point function of four monopole operators with the lowest unit of…

High Energy Physics - Theory · Physics 2016-08-24 Shai M. Chester , Silviu S. Pufu

Monopole operators are studied in a large family of quantum critical points between Dirac and topological quantum spin liquids (QSLs): chiral and Z$_{2}$ QSLs. These quantum phase transitions are described by conformal field theories…

Strongly Correlated Electrons · Physics 2022-10-26 Éric Dupuis , Rufus Boyack , William Witczak-Krempa

We compute the phase shift of a highly energetic particle traveling in the background of an asymptotically AdS black hole. In the dual CFT, the phase shift is related to a four point function in the Regge limit. The black hole mass is…

High Energy Physics - Theory · Physics 2019-06-12 Manuela Kulaxizi , Gim Seng Ng , Andrei Parnachev

Three-dimensional quantum electrodynamics with $N$ charged fermions contains monopole operators that have been studied perturbatively at large $N$. Here, we initiate the study of these monopole operators in the $4-\epsilon$ expansion by…

High Energy Physics - Theory · Physics 2016-12-13 Shai M. Chester , Mark Mezei , Silviu S. Pufu , Itamar Yaakov

The superconductor-to-insulator quantum phase transition in resistively shunted Josephson junctions is investigated by means of path-integral Monte Carlo simulations. This numerical technique allows us to directly access the (previously…

Superconductivity · Physics 2009-11-07 Carlos P. Herrero , Andrei D. Zaikin

We calculate the anomalous dimensions of operators with large global charge $J$ in certain strongly coupled conformal field theories in three dimensions, such as the O(2) model and the supersymmetric fixed point with a single chiral…

High Energy Physics - Theory · Physics 2019-12-04 Simeon Hellerman , Domenico Orlando , Susanne Reffert , Masataka Watanabe

We study the phases and fixed-point structure of two-dimensional supersymmetric Wess-Zumino models with one supercharge. Our work is based on the functional renormalization group formulated in terms of a manifestly off-shell supersymmetric…

High Energy Physics - Theory · Physics 2009-11-06 Franziska Synatschke , Holger Gies , Andreas Wipf

We study the phase transition between a trivial and a time-reversal-invariant topological superconductor in a single-band system. By analyzing the interplay of symmetry, topology and energetics, we show that for a generic normal state band…

Superconductivity · Physics 2017-11-08 Yuxuan Wang , Liang Fu

We study the phase diagram and the quantum phase transitions of a site-diluted two-dimensional O(3) quantum rotor model by means of large-scale Monte-Carlo simulations. This system has two quantum phase transitions, a generic one for small…

Strongly Correlated Electrons · Physics 2007-05-23 Thomas Vojta , Rastko Sknepnek

We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6…

High Energy Physics - Phenomenology · Physics 2018-04-10 Qing-Hong Cao , Fa Peng Huang , Ke-Pan Xie , Xinmin Zhang

In this letter, we discuss certain universal predictions of the large charge expansion in conformal field theories with $U(1)$ symmetry, mainly focusing on four-dimensional theories. We show that, while in three dimensions quantum…

High Energy Physics - Theory · Physics 2020-12-15 Gabriel Cuomo

We propose a hybrid equation of state (VDF+MIT EoS) to describe the hadron-quark phase transition in dense nuclear matter. By coupling this EoS with the AMPT-HC transport model and comparing to recent experimental data on proton and…

Nuclear Theory · Physics 2026-02-25 Zhi-Min Wu , Gao-Chan Yong , Qingfeng Li
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