A master equation for spin systems far from equilibrium.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of magnetic resonance"
DOI: 10.1016/j.jmr.2019.106645
Abstract: The quantum dynamics of spin systems is often treated by a differential equation known as the master equation, which describes the trajectories of spin observables such as magnetization components, spin state populations, and coherences between… read more here.
Keywords: equation; master equation; spin systems; thermal equilibrium ... See more keywords
Calculation of exchange couplings in the electronically excited state of molecular three-spin systems
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d2sc04701b
Abstract: Photogenerated molecular three-spin systems, composed of a chromophore and a covalently bound stable radical, are promising candidates for applications in the field of molecular spintronics. Through excitation with light, an excited doublet state and a… read more here.
Keywords: state; three spin; spin systems; exchange ... See more keywords
Delta-Davidson method for interior eigenproblem in many-spin systems* * Project supported by the National Natural Science Foundation of China (Grant Nos. 91836101, U1930201, and 11574239).
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abd74a
Abstract: Many numerical methods, such as tensor network approaches including density matrix renormalization group calculations, have been developed to calculate the extreme/ground states of quantum many-body systems. However, little attention has been paid to the central… read more here.
Keywords: spin systems; delta davidson; many spin; davidson method ... See more keywords
Spin liquids from Majorana zero modes in a Cooper-pair box
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.075107
Abstract: We propose a path for constructing diverse interacting spin systems from topological nanowires in Cooper Boxes. The wires are grouped into a three-wire building block called an 'hexon', consisting of six Majorana zero modes. In… read more here.
Keywords: zero modes; spin systems; liquids majorana; spin liquids ... See more keywords
Trajectory phase transitions in noninteracting spin systems.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review. E"
DOI: 10.1103/physreve.101.042115
Abstract: We show that a collection of independent Ising spins evolving stochastically can display surprisingly large fluctuations toward ordered behavior, as quantified by certain types of time-integrated plaquette observables, despite the underlying dynamics being noninteracting. In… read more here.
Keywords: spin systems; trajectory phase; noninteracting spin; phase transitions ... See more keywords