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Physicists find first possible 3D quantum spin liquid（图）
Physicists 3D quantum spin liquid
2019/10/23
There's no known way to prove a 3D "quantum spin liquid" exists, so Rice University physicists and their collaborators did the next best thing. They showed that single crystals of cerium zirconium pyr...
Relativistic Quantum State, Geometric Phase and Dissipationless Spin current
Relativistic Quantum State Geometric Phase Dissipationless Spin current
2011/8/11
Abstract: Spin current of a Dirac particle is shown to be given by the geometric phase and in terms of the later, a closed form expression is obtained for the dissipationlessness of the spin current.
New ways to access the transverse spin content of the nucleon
New ways transverse spin content of the nucleon
2011/1/7
We first describe a new way to access the chiral odd transversity parton distribution
in the proton through the photoproduction of lepton pairs. The basic ingredient is the
interference of the usual...
Irreversible evolution of a two-nucleus spin NMR system - subdynamics approach
Irreversible evolution spin NMR system subdynamics approach
2010/11/8
The time irreversible evolution of a two-nucleus spin system interacting with a magnetic field is analyzed in the framework of the subdynamics theory. The spin system is determined by the H(1), C(13) ...
Electron and nuclear spins have been employed in many of the early demonstrations of quantum technology (QT). However applications in real world QT are limited by the difficulty of measuring single sp...
Coherent state transfer via highly mixed quantum spin chains
quantum spin chains coherent state transfer Quantum Physics
2010/11/8
Spin chains have been proposed as quantum wires in many quantum information processing architectures. Coherent transmission of quantum information over short distances is enabled by their internal dyn...
Nematic spin fluid in the tetragonal phase of BaFe2As2
Nematic spin fluid tetragonal phase of BaFe2As2
2010/11/23
Magnetic interactions are generally believed to play a key role in mediating electron pairing for superconductivity in iron arsenides1-4; yet their character is only partially understood5-8. Experimen...
Motion of electrons can influence their spins through a fundamental effect called spin-orbit interaction. This interaction provides a way to electrically control spins and as such lies at the foundati...
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
2011/1/10
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
Symmetry breaking orbital anisotropy detwinned Ba
2010/11/17
Nematicity, defined as broken rotational symmetry, has recently been observed in the competing phases in proximity to the superconducting phase in the high TC cuprates (1-2). Similarly, the new iron-b...
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
2011/1/6
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Rapidly fluctuating orbital occupancy above the orbital ordering transition in spin-gap compounds
Rapidly fluctuating orbital orbital ordering spin-gap compounds
2010/11/19
Several spin systems with low dimensionality develop a spin-dimer phase within a molecular orbital below TS, competing with long-range antiferromagnetic order. Very often, preferential orbital occupan...
We show that a purely s-wave interaction in three dimensions (3D) can induce higher partialwave
resonances in mixed dimensions. We develop two-body scattering theories in all three cases of
0D-3D, 1...
We study the evolution of entanglement, quantum correlation and classical correlation for the one dimensional XY model in external transverse magnetic field. The system is initialized in the full pola...
On the basis of a lemma designed to decide whether a discrete system decoheres or not with no need of computer simulations, in this paper we analyze the well-known spin-bath model. The lemma allows us...