Results 31 to 40 of about 7,483,920 (339)
Optics Express, 2021 We investigate the topology optimization of geometric phase metasurfaces for wide-angle and high-efficiency deflection, where adjoint-based multi-object optimization approach is adopted to improve the absolute efficiency while maintaining the ...
Mingfeng Xu +8 more
semanticscholar +1 more source
Geometric-phase polarimetry [PDF]
Journal of Optics, 2020 This paper describes polarimetric strategies based on measuring the light’s geometric phase, which results from the evolution of the polarisation state while traversing an optical system. The system in question is described by a homogeneous Jones matrix,
Luis Garza-Soto +5 more
semanticscholar +1 more source
Topological Properties of the 2D 2-Band System with Generalized W-Shaped Band Inversion
Quantum Reports, 2022 We report the topological properties, in terms of the Berry phase, of the 2D noninteracting system with electron–hole band inversion, described by the two-band generalized analogue of the low-energy Bernevig–Hughes–Zhang Hamiltonian, yielding the W ...
Zoran Rukelj, Danko Radić
doaj +1 more source
Demon driven by geometric phase
Physical Review Research, 2023 We theoretically study the entropy production and the work extracted from a system connected to two reservoirs by periodic modulations of the electrochemical potentials of the reservoirs and the parameter of a system Hamiltonian under isothermal ...
Ryosuke Yoshii, Hisao Hayakawa
doaj +1 more source
Theoretical Design of a Bionic Spatial 3D-Arrayed Multifocal Metalens
Biomimetics, 2022 With the development of micro/nano-optics, metasurfaces are gaining increasing attention working as novel electromagnetic wave control devices. Among which, metalenses have been developed and applied as a typical application of metasurfaces owing to ...
Guihui Duan +3 more
doaj +1 more source
Experimental Measurement of Mixed State Geometric Phase by Quantum Interferometry using NMR [PDF]
, 2005 Geometric phase has been proposed as one of the promising methodologies to perform fault tolerant quantum computations. However, since decoherence plays a crucial role in such studies, understanding of mixed state geometric phase has become important ...
Aharonov +21 more
core +1 more source
Geometric Phase and Quantum Phase Transition in the Lipkin-Meshkov-Glick model [PDF]
, 2006 The relation between the geometric phase and quantum phase transition has been discussed in the Lipkin-Meshkov-Glick model. Our calculation shows the ability of geometric phase of the ground state to mark quantum phase transition in this model.
Berry +35 more
core +2 more sources
Ultra narrowband geometric-phase resonant metasurfaces [PDF]
Proc Natl Acad Sci U S AXu Ouyang +10 more
openalex +2 more sources
Geometric phase for timelike spherical normal magnetic charged particles optical ferromagnetic model
Journal of Taibah University for Science, 2020 We introduce the theory of optical spherical Heisenberg ferromagnetic spin of timelike spherical normal magnetic flows of particles by the spherical frame in de Sitter space.
Talat Korpinar +3 more
doaj +1 more source
Enhancement of Geometric Phase by Frustration of Decoherence: A Parrondo like Effect [PDF]
, 2013 Geometric phase plays an important role in evolution of pure or mixed quantum states. However, when a system undergoes decoherence the development of geometric phase may be inhibited.
A. K. Pati +4 more
core +2 more sources