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45 papers · 1 filter
Observation of well-defined quasi-particle over a wide energy range in quasi-2D system
L. -L. Jia, Z. -H. Liu, Y. -P. Cai +12
We report the observation by angle-resolved photoemission spectroscopy measurements of a highly anisotropic Dirac-cone structure in high quality SrMnBi2 crystals. We reveal a well-…
Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
Qimiao Si, J. H. Pixley, Emilian Nica +4
Considerable efforts have been made in recent years to theoretically understand quantum phase transitions in Kondo lattice systems. A particular focus is on Kondo destruction, whic…
Quantum and thermal ionic motion, oxygen isotope effect, and superexchange distribution in LaCuO
P. S. Häfliger, S. Gerber, R. Pramod +11
We study the zero-point and thermal ionic motion in LaCuO by means of high-resolution neutron diffraction experiments. Our results demonstrate anisotropic motion of O and t…
Qualitative analysis of stationary Keller-Segel chemotaxis models with logistic growth
Qi Wang, Jingda Yan, Chunyi Gai
We study the stationary Keller--Segel chemotaxis models with logistic cellular growth over a one-dimensional region subject to the Neumann boundary condition. We show that nonconst…
Finite-temperature decoherence of spin states in a single molecular magnet
Xiang Hao, Xiaoqun Wang, Chen Liu +1
We investigate the quantum evolution of spin states of a single molecular magnet in a local electric field. The decoherence of a single molecula…
Dynamics of Quantum Fisher information in a spin-boson model
Xiang Hao, Ninghua Tong, Shiqun Zhu
Quantum Fisher information characterizes the phase sensitivity of qubits in the spin-boson model with a finite bandwidth spectrum. In contrast with Markovian reservoirs, the quantu…