A broken symmetry approach for the modeling and analysis of antiparallel diodes-based chaotic circuits: a case study
Sign Up to like & getrecommendations! Published in 2020 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-020-01664-3
Abstract: This paper focuses on the modeling and symmetry breaking analysis of the large class of chaotic electronic circuits utilizing an antiparallel diodes pair as nonlinear device necessary for chaotic oscillations. A new and relatively simple… read more here.
Keywords: analysis; antiparallel diodes; circuit; symmetry ... See more keywords
The role of non-covalent interaction in the hexadentate coordination environment on the magnetic behavior of binuclear helical complex [Ni2(L)2]4+: A broken-symmetry approach
Sign Up to like & getrecommendations! Published in 2017 at "Polyhedron"
DOI: 10.1016/j.poly.2016.11.021
Abstract: Abstract The nature of bonds in coordination environments of a homobimetallic supramolecular helicate complex has been studied using Quantum Theory of Atom in Molecule (QTAIM) and the electron localization function (ELF) analysis. The topological parameters… read more here.
Keywords: coordination; broken symmetry; complex; symmetry approach ... See more keywords
Broken Symmetry Approach to Magnetic Properties of Oligonuclear Transition-Metal Complexes: Application to Hyperfine Tensors of Mixed-Valence Manganese Compounds
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.8b05806
Abstract: The broken symmetry method is a standard approach for the calculation of isotropic exchange coupling constants in oligonuclear transition-metal compounds with density functional methods. It is most transparently derived through a mapping approach, where one… read more here.
Keywords: transition metal; hyperfine tensors; oligonuclear transition; broken symmetry ... See more keywords
Magnetic and Electronic Structural Properties of the S3 State of Nature’s Water Oxidizing Complex: A Combined Study in ELDOR-Detected Nuclear Magnetic Resonance Spectral Simulation and Broken-Symmetry Density Functional Theory
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c06151
Abstract: ELDOR-detected nuclear magnetic resonance (EDNMR) spectral simulations combined with broken-symmetry density functional theory (BS-DFT) calculations are used to obtain and to assign the 55Mn hyperfine coupling constants (hfcs) for modified forms of the water oxidizing… read more here.
Keywords: magnetic resonance; broken symmetry; nuclear magnetic; water ... See more keywords
Edge channels of broken-symmetry quantum Hall states in graphene visualized by atomic force microscopy
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22886-7
Abstract: The quantum Hall (QH) effect, a topologically non-trivial quantum phase, expanded the concept of topological order in physics bringing into focus the intimate relation between the “bulk” topology and the edge states. The QH effect… read more here.
Keywords: broken symmetry; quantum hall; edge; microscopy ... See more keywords
Symmetry–simplicity, broken symmetry–complexity
Sign Up to like & getrecommendations! Published in 2023 at "Interface Focus"
DOI: 10.1098/rsfs.2022.0075
Abstract: Complex phenomena are made possible when: (i) fundamental physical symmetries are broken and (ii) from the set of broken symmetries historically selected ground states are applied to performing mechanical work and storing adaptive information. Over… read more here.
Keywords: simplicity broken; symmetry complexity; symmetry simplicity; symmetry ... See more keywords
Broken symmetry in a two-qubit quantum control landscape
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.052114
Abstract: We analyze the physics of optimal protocols to prepare a target state with high fidelity in a symmetrically-coupled two-qubit system. By varying the protocol duration, we find a discontinuous phase transition, which is characterized by… read more here.
Keywords: control; two qubit; broken symmetry; qubit ... See more keywords
Band structure and insulating states driven by Coulomb interaction in twisted bilayer graphene
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.045107
Abstract: We analyze the phase diagram of twisted graphene bilayers near a magic angle. We consider the effect of the long-range Coulomb interaction, treated within the self-consistent Hartree-Fock approximation, and we study arbitrary band fillings. We… read more here.
Keywords: graphene; broken symmetry; coulomb interaction; interaction ... See more keywords
Slave-spin mean field for broken-symmetry states: Néel antiferromagnetism and its phase separation in multiorbital Hubbard models
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.155149
Abstract: We introduce the generalization of the Slave-Spin Mean-Field method to broken-symmetry phases. Through a variational approach we derive the single-particle energy shift in the mean-field equations which generates the appropriate self-consistent field responsible for the… read more here.
Keywords: phase separation; mean field; field; slave spin ... See more keywords
Thermal Transport Signatures of Broken-Symmetry Phases in Graphene.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.027601
Abstract: In the half filled zero-energy Landau level of bilayer graphene, competing phases with spontaneously broken symmetries and an intriguing quantum critical behavior have been predicted. Here we investigate signatures of these broken-symmetry phases in thermal… read more here.
Keywords: signatures broken; symmetry phases; thermal transport; symmetry ... See more keywords
Coherent Many-Body Oscillations Induced by a Superposition of Broken Symmetry States in the Wake of a Quantum Phase Transition.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.260407
Abstract: It is now widely accepted that quenches through the critical region of quantum phase transitions result in post-transition states populated with topological defects-analogs of the classical topological defects. However, consequences of the very nonclassical fact… read more here.
Keywords: superposition; oscillations induced; symmetry states; quantum phase ... See more keywords