Results 51 to 60 of about 2,377,765 (304)

Loss-Driven Topological Transitions in Lasing

Physical Review Letters, 2022
We experimentally observe lasing in a hexamer plasmonic lattice and find that when tuning the scale of the unit cell, the polarization winding of the emission changes. By a theoretical analysis we identify the lasing modes as quasi bound states in continuum (quasi-BICs) of topological charges of zero, one or two.
Heilmann, Rebecca, Arjas, Kristian, Aronen, Kerttu, Martikainen, Jani Petri, Törmä, Päivi, Salerno, Grazia   +6 more
openaire   +6 more sources

Topological structure of the magnetic solar corona [PDF]

, 2007
The solar corona is a highly complex and active plasma environment, containing many exotic phenomena such as solar flares, coronal mass ejections, prominences, coronal loops, and bright points.
Maclean, Rhona Claire
core   +2 more sources

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Topological interpretation of extremal and Davies-type phase transitions of black holes

Physics Letters B
Topological arguments are currently being used as a novel scheme to discern the properties of black holes while ignoring their detailed structure and specific field equations.
Krishnakanta Bhattacharya, Kazuharu Bamba, Douglas Singleton   +2 more
doaj   +1 more source

Systematic study on stanene bulk states and the edge states of its zigzag nanoribbon

New Journal of Physics, 2017
Stanene, as a counterpart of graphene, but with much larger spin–orbit coupling (SOC) strength, has recently been synthesized experimentally. Based on first principle calculations and an effective model, we systematically study the electronic and ...
Botao Fu, M Abid, Cheng-Cheng Liu
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

The phase transitions between Zn×Zn bosonic topological phases in 1+1D, and a constraint on the central charge for the critical points between bosonic symmetry protected topological phases

Nuclear Physics B, 2017
The study of continuous phase transitions triggered by spontaneous symmetry breaking has brought revolutionary ideas to physics. Recently, through the discovery of symmetry protected topological phases, it is realized that continuous quantum phase ...
Lokman Tsui, Yen-Ta Huang, Hong-Chen Jiang, Dung-Hai Lee   +3 more
doaj   +1 more source

Topological phase transition at the interface of a topological with a conventional insulator

Journal of Physics: Condensed Matter, 2020
Abstract We study the topological states which appear at the interface between a topological insulator (TI) and a conventional insulator (CI) using effective Hamiltonians which accurately describe the band structure of the Bi 2 Se 3 ...
Niraj Aryal, Efstratios Manousakis
openaire   +3 more sources

ANDERSON TRANSITIONS: CRITICALITY, SYMMETRIES AND TOPOLOGIES [PDF]

International Journal of Modern Physics B, 2010
The physics of Anderson transitions between localized and metallic phases in disordered systems is reviewed. We focus on the character of criticality as well as on underlying symmetries and topologies that are crucial for understanding phase diagrams and the critical behavior.
Mirlin, A. D., Evers, F., Gornyi, I. V., Ostrovsky, P. M.   +3 more
openaire   +3 more sources

The effects of collective pinning on topological order–disorder phase transition in type-II superconducting films

, 2013
The effects of collective pinning, due to the quenched disorder, on topological order–disorder phase transition in type-II superconducting films have been investigated.
Chen, Wei-yeu; Chou, Ming-ju; Feng, Shi-ping, Chen, Wei-yeu   +1 more
core   +1 more source