Publications (16)
Status of head-on beam-beam compensation in RHIC
W. Fischer, Z. Altinbas, M. Anerella +34
In polarized proton operation, the performance of the Relativistic Heavy Ion Collider (RHIC) is limited by the head-on beam-beam effect. To overcome this limitation, two electron l…
High energy Coulomb-scattered electrons for relativistic particle beam diagnostics
P. Thieberger, Z. Altinbas, C. Carlson +16
A new system used for monitoring energetic Coulomb-scattered electrons as the main diagnostic for accurately aligning the electron and ion beams in the new Relativistic Heavy Ion C…
Band-selective Holstein polaron in Luttinger liquid material A0.3MoO3 (A = K, Rb)
L. Kang, X. Du, J. S. Zhou +17
(Quasi-)one-dimensional systems exhibit various fascinating properties such as Luttinger liquid behavior, Peierls transition, novel topological phases, and the accommodation of uni…
The role of the band gaps in reconstruction of polar surfaces and interfaces
X. Gu, I. S. Elfimov, G. A. Sawatzky
Density functional theory applied to a simple ionic material, MgO, is used as a model system to clarify several aspects of electronic driven mechanism to compensate for the divergi…
Crossed Luttinger Liquid Hidden in a Quasi-two-dimensional Material η-Mo4O11
X. Du, L. Kang, Y. Y. Lv +14
Although the concept of Luttinger liquid (LL) that describes a one-dimensional (1D) interacting fermion system collapses in higher dimensions, it has been proposed to be closely re…
Improving Optics Control and Measurement at RHIC
W. Fung, Y. Hao, X. Gu +1
Maximizing luminosity requires precise control of the optics function at the interaction point (IP), implying that the location () of the beta function's minimum value ($β^*$…
Thermal hysteretic behavior and negative magnetoresistance in an unusual charge-density-wave material EuTe4
Q. Q. Zhang, Y. Shi, K. Y. Zhai +17
EuTe4 is a newly-discovered van der Waals material exhibiting a novel charge-density wave (CDW) with a large thermal hysteresis in the resistivity and CDW gap. In this work, we sys…
Hybridization and Correlation between f- and d-orbital electrons in a valence fluctuating compound EuNi2P2
Z. X. Yin, X. Du, W. Z. Cao +17
The interaction between localized f and itinerant conduction electrons is crucial in the electronic properties of heavy fermion and valence fluctuating compounds. Using high-resolu…
Development of a Laser-based angle-resolved-photoemission spectrometer with sub-micrometer spatial resolution and high-efficiency spin detection
R. Z. Xu, X. Gu, W. X. Zhao +12
Angle-resolved photoemission spectroscopy with sub-micrometer spatial resolution (μ-ARPES), has become a powerful tool for studying quantum materials. To achieve sub-micrometer or…
Evidence for Band Renormalizations in Strong-coupling Superconducting Alkali-fulleride Films
J. S. Zhou, R. Z. Xu, X. Q. Yu +14
There has been a long-standing debate about the mechanism of the unusual superconductivity in alkali-intercalated fulleride superconductors. In this work, using high-resolution ang…
Orbital-selective charge-density wave in TaTe
R. Z. Xu, X. Du, J. S. Zhou +13
TaTe, a metallic charge-density wave (CDW) material discovered decades ago, has attracted renewed attention due to its rich interesting properties such as pressure-induced supe…
Robust Kagome Electronic Structure in Topological Quantum Magnets XMn6Sn6 (X = Dy, Tb, Gd, Y)
X. Gu, C. Chen, W. S. Wei +24
Crystal geometry can greatly influence the emergent properties of quantum materials. As an example, the kagome lattice is an ideal platform to study the rich interplay between topo…
Efficient energy-preserving exponential integrators for multi-components Hamiltonian systems
X. Gu, C. Jiang, Y. Wang +1
In this paper, we develop a framework to construct energy-preserving methods for multi-components Hamiltonian systems, combining the exponential integrator and the partitioned aver…
Default Bayesian Model Selection of Constrained Multivariate Normal Linear Models
J. Mulder, H. Hoijtink, X. Gu
The multivariate normal linear model is one of the most widely employed models for statistical inference in applied research. Special cases include (multivariate) t testing, (M)AN(…
A Novel Numerical Algorithms Optimization Method with Machine Learning Frameworks: Application on Real-time Plasmas Equilibrium Reconstruction in EXL-50U Spherical Torus
G. H. Zheng, S. F. Liu, X. Gu +14
This work proposes for the first time a novel optimization method for numerical algorithms, which takes advantages of machine learning frameworks PyTorch and TensorRT, leveraging t…
Six-dimensional weak-strong simulations of head-on beam-beam compensation in RHIC
Y. Luo, W. Fischer, N. P. Abreu +3
To compensate the large beam-beam tune spread and beam-beam resonance driving terms in the polarized proton operation in the Relativistic Heavy Ion Collider (RHIC), we will introdu…