Results 51 to 60 of about 2,654,747 (240)

Hyperbolic vacua in Minkowski space

Journal of High Energy Physics
Families of Lorentz, but not Poincare, invariant vacua are constructed for a massless scalar field in 4D Minkowski space. These are generalizations of the Rindler vacuum with a larger symmetry group. Explicit expressions are given as squeezed excitations
Walker Melton, Filip Niewinski, Andrew Strominger, Tianli Wang   +3 more
doaj   +1 more source

Giant Vortices and the Regge Limit

Journal of High Energy Physics, 2023
In recent years it has been shown that strongly coupled systems become analytically tractable in the regime of large quantum numbers, such as large spin or large charge.
Gabriel Cuomo, Zohar Komargodski
doaj   +1 more source

Over 18% Efficiency from Halogen‐Free Solvent‐Processed Polymer Solar Cells Enabled by Asymmetric Small Molecule Acceptors with Fluoro‐Thienyl Extended Terminal

Advanced Functional Materials, EarlyView.
An asymmetric non‐fullerene acceptor BTP‐FT is developed by extending the end group of Y6‐BO with thiophene. The conformation of the molecule is determined by the noncovalent F···S interaction as demonstrated by 2D NMR and simulations. An efficiency of 18.39% is achieved in the resulting ternary solar cells processed from toluene.
Jingnan Wu, Fengbo Sun, Xinxin Xia, Leandro R. Franco, Qiaonan Chen, Yúang Fu, Rafael B. Ribeiro, Xinhui Lu, C. Moyses Araujo, Xunchang Wang, Renqiang Yang, Xia Guo, Donghong Yu, Maojie Zhang, Ergang Wang   +14 more
wiley   +1 more source

Regioselective and Anisotropic Multi‐Patching of Small Microparticles via a Polymer Brush‐Assisted Microcontact Printing (µCP)

Advanced Functional Materials, EarlyView.
A method to fabricate anisotropic SiO2 patchy microspheres is presented using a modified microcontact printing technique. This involves a PDMS elastomer stamp with grooved surface topography, creating a confined environment for the microspheres.
Martin Reifarth, Marcel Sperling, Richard Grobe, Pinar Akarsu, Florian Schmitt, Maurice Schmette, Steffen Tank, Katja M. Arndt, Salvatore Chiantia, Matthias Hartlieb, Alexander Böker   +10 more
wiley   +1 more source

(Chiral) Virasoro invariance of the tree-level MHV graviton scattering amplitudes

Journal of High Energy Physics, 2022
In this paper we continue our study of the tree level MHV graviton scattering amplitudes from the point of view of celestial holography. In arXiv:2008.04330 we showed that the celestial OPE of two gravitons in the MHV sector can be written as a linear ...
Shamik Banerjee, Sudip Ghosh, Partha Paul   +2 more
doaj   +1 more source

Gate‐Tunable Hole Transport in In‐Plane Ge Nanowires by V‐Groove Confined Selective Epitaxy

Advanced Functional Materials, EarlyView.
Ge nanowires are promising for hole spin‐based quantum processors, requiring direct integration onto Si wafers. This work introduces V‐groove‐confined selective epitaxy for in‐plane nanowire growth on Si. Structural and low‐temperature transport measurements confirm their high crystalline quality, gate‐tunable hole densities, and mobility.
Santhanu Panikar Ramanandan, Alban Morelle, Michele Masseroni, Shelly Ben‐David, Sara Martí‐Sánchez, Victor Boureau, Alok Rudra, Thomas Ihn, Jordi Arbiol, W. Craig Carter, Klaus Ensslin, Anna Fontcuberta i Morral   +11 more
wiley   +1 more source

Pseudo Entropy in U(1) gauge theory

Journal of High Energy Physics, 2022
We study the properties of pseudo entropy, a new generalization of entanglement entropy, in free Maxwell field theory in d = 4 dimension. We prepare excited states by the different components of the field strengths located at different Euclidean times ...
Jyotirmoy Mukherjee
doaj   +1 more source

Roulette‐Inspired Physical Unclonable Functions: Stochastic yet Deterministic Multi‐Bit Patterning through the Solutal Marangoni Effect

Advanced Functional Materials, EarlyView.
Geometric multi‐bit patterning based on dynamic wetting and dewetting phenomena creates roulette‐like Physical Unclonable Function (PUF) labels with stochastic yet deterministic properties. This method leverages the solutal‐Marangoni effect for high randomness while achieving deterministic multinary patterns through polygonal confinement of binary ...
Yeongin Cho, Jeongsu Pyeon, Hanhwi Jang, Gwangsik Mun, Jaimin Kang, Byong‐Guk Park, Geon Yeong Kim, Hyoungsoo Kim, Yeon Sik Jung   +8 more
wiley   +1 more source

Anatomy of null contractions

Journal of High Energy Physics
We introduce null contractions of the Poincare and relativistic conformal algebras. The longitudinal null contraction involves writing the algebra in lightcone coordinates and contracting one of the null directions.
Arjun Bagchi, M Nachiketh, Pushkar Soni
doaj   +1 more source

Spectrum continuity and level repulsion: the Ising CFT from infinitesimal to finite ε

Journal of High Energy Physics, 2023
Using numerical conformal bootstrap technology we perform a non-perturbative study of the Ising CFT and its spectrum from infinitesimal to finite values of ε = 4 – d.
Johan Henriksson, Stefanos R. Kousvos, Marten Reehorst   +2 more
doaj   +1 more source