Results 101 to 110 of about 357,046 (309)

Renormalization Group Analysis of Spectral Problems in Quantum Field Theory

, 1998
In this paper we present a self-contained and detailed exposition of the new renormalization group technique proposed in [1, 2]. Its main feature is that the renormalization group transformation acts directly on a space of operators rather than on ...
V. Bach, J. Fröhlich, I. Sigal
semanticscholar   +1 more source

Strong correlation effects on topological quantum phase transitions in three dimensions [PDF]

, 2016
We investigate the role of short-ranged electron-electron interactions in a paradigmatic model of three dimensional topological insulators, using dynamical mean-field theory and focusing on non magnetically ordered solutions.
A. Amaricci, J. C. Budich, M. Capone, B. Trauzettel, G. Sangiovanni   +4 more
semanticscholar   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

Entanglement properties of boundary state and thermalization

Journal of High Energy Physics, 2018
We discuss the regularized boundary state e−τ0H|Ba $$ {e}^{-{\tau}_0H}\Big|{\left.B\right\rangle}_a $$ on two aspects in both 2D CFT and higher dimensional free field theory.
Wu-zhong Guo
doaj   +1 more source

Vacuum Fluctuations of a Scalar Field during Inflation: Quantum versus Stochastic Analysis [PDF]

, 2015
We consider an infrared truncated massless minimally coupled scalar field with a quartic self-interaction in the locally de Sitter background of an inflating universe. We compute the two-point correlation function of the scalar at one- and two-loop order
V. Onemli
semanticscholar   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

Advanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee, Yufei Zhao, Noble Gluscevich, Hemian Yi, Zachary Morgan, Huibo Cao, Jahyun Koo, Yu Wang, Jingyang He, Venkatraman Gopalan, Yuanxi Wang, Weiwei Xie, CuiZu Chang, Qiang Zhang, Binghai Yan, Zhiqiang Mao   +15 more
wiley   +1 more source

Efficient Atomistic Simulation of Heterostructure Field-Effect Transistors

IEEE Journal of the Electron Devices Society, 2019
In this paper, atomistic-level quantum mechanical simulations are performed for nanoscale field-effect transistors (FETs) with lateral or vertical heterojunction, within the non-equilibrium Green's function formalism.
Yongsoo Ahn, Mincheol Shin
doaj   +1 more source

On the Schwinger Model on Riemann Surfaces

, 1993
In this paper, the massless Schwinger model or two dimensional quantum electrodynamics is exactly solved on a Riemann surface. The partition function and the generating functional of the correlation functions involving the fermionic currents are ...
Abdalla, Adam, Alvarez-Gaumé, Barcelos-Neto, Barcelos-Neto, Bassetto, Birrel, Blau, Bocharek, Buchbinder, Capri, Capri, Coleman, Das, Dilger, Donaldson, Faddeev, Fay, Ferrari, Ferrari, Ferrari, Ferrari, Fine, Franco Ferrari, Freedman, Fröhlich, Fulling, Gattringer, Gross, Gupta, Hetrick, Jackiw, Jayewardena, Joos, Joos, Killingback, Kripfganz, Lowenstein, Manton, McCartor, Migdal, Moffat, Morchio, Porrati, Raina, Rajeev, Rovelli, Rusakov, Sachs, Sachs, Schwinger, Sommerfield, Thirring, Tomboulis, Witten, Witten   +55 more
core   +1 more source

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

Advanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy, Hai Li, Hock Beng Lee, Devi Prashad Ojha, Manoj Mayaji Ovhal, Vasanthan Devaraj, Sooman Lim, Jae‐Wook Kang   +7 more
wiley   +1 more source

Universal thermal corrections to symmetry-resolved entanglement entropy and full counting statistics

Journal of High Energy Physics, 2023
In the presence of a global symmetry, the entanglement entropy of a quantum system can be decomposed among the individual symmetry sectors, dubbed symmetry-resolved entanglement entropy.
Mostafa Ghasemi
doaj   +1 more source