Do, Seung-Hwan Lee, C.H. Kihara, T. Choi, Y.S. Yoon, Sungwon Kim, Kangwon Cheong, Hyeonsik Chen, Wei-Tin Chou, Fangcheng Nojiri, H.
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dc and ac magnetic susceptibility, magnetization, specific heat, and Raman scattering measurements are combined to probe low-lying spin excitations in α-Ru1-xIrxCl3 (x≈0.2), which realizes a disordered spin liquid. At intermediate energies (ℏω>3 meV), Raman spectroscopy evidences linearly ω-dependent Majorana-like excitations, obeying Fermi statist...

Casadio, R. Lenzi, M. Ciarfella, A.

We analyse the classical configurations of a bootstrapped Newtonian potential generated by homogeneous spherically symmetric sources in terms of a quantum coherent state. We first compute how the mass and mean wavelength of these solutions scale in terms of the number of quanta in the coherent state. We then note that the classical relation between...

Yannouleas, Constantine Landman, Uzi

The higher-order momentum correlation functions associated with the time-of-flight spectroscopy of three spinless ultracold bosonic interacting neutral atoms confined in a linear three-well optical trap are presented. The underlying Hamiltonian employed for the interacting atoms is a three-site Hubbard model. The methodology introduced here contras...

Zhang, Kunyan Pang, Xiaoqi Wang, Tong Han, Fei Shang, Shun-Li Hung, Nguyen T. Nugraha, Ahmad R.T. Liu, Zi-Kui Li, Mingda Saito, Riichiro
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Topological Weyl semimetals (WSMs) have attracted widespread interest due to the chiral Weyl fermions and surface Fermi arcs that enable unique optical and transport phenomena. In this work, we present angle-resolved Raman spectroscopy of TaP, a prototypical noncentrosymmetric WSM, for five excitation wavelengths ranging from 364 to 785 nm. The Ram...

Deprince, J. Bautista, M.A. Fritzsche, S. Garcia, J.A. Kallman, T.R. Mendoza, C. Palmeri, P. Quinet, P.

Aims. In the context of black-hole accretion disks, we aim to compute the plasma-environment effects on the atomic parameters used to model the decay of K-vacancy states in moderately charged iron ions, namely Fe ix - Fe xvi. Methods. We used the fully relativistic multiconfiguration Dirac-Fock (MCDF) method approximating the plasma electron-nucleu...

Fröhlich, Jürg Knowles, Antti Schlein, Benjamin Sohinger, Vedran

We review some recent results on interacting Bose gases in thermal equilibrium. In particular, we study the convergence of the grand-canonical equilibrium states of such gases to their mean-field limits, which are given by the Gibbs measures of classical field theories with quartic Hartree-type self-interaction, and to the Gibbs states of classical...

Fang, Ji-Yu Chen, Shou-Wan Heng, Tai-Hua

In this study, single-particle energy was examined using the finite difference method by taking $^{208}$Pb as an example. If the first derivative term in the spherical Dirac equation is discretized using a three-point formula, a one-to-one correspondence occurs between the physical and spurious states. Although these energies are exactly the same, ...

Karlovets, Dmitry V. Serbo, Valeriy G.

Effects of the quantum interference in collisions of particles have a twofold nature: they arise because of the auto-correlation of a complex scattering amplitude and due to spatial coherence of the incoming wave packets. Both these effects are neglected in a conventional scattering theory dealing with the delocalized plane waves, although they som...

Thorngren, Ryan

We derive a canonical form for 2-group gauge theory in 3+1D which shows they are either equivalent to Dijkgraaf-Witten theory or to the so-called "EF1" topological order of Lan-Wen. We use this canonical form to compute all possible anomalies of 2-group gauge theory which may occur without spontaneous symmetry breaking, providing a converse of the ...

Smith, Naftali R. Dean, David S. Le Doussal, Pierre Majumdar, Satya N. Schehr, Gregory

We study a system of $N$ noninteracting spinless fermions in a confining, double-well potential in one dimension. When the Fermi energy is close to the value of the potential at its local maximum we show that physical properties, such as the average density and the fermion position correlation functions, display a universal behavior that depends on...