131 citations · 632 across the 18 of their papers we have counts for
18 papers
Fully-connected three-mode squeezed vacuum: Gaussian entanglement, steering, and collective photon subtraction
Manjia Mai, Jifeng Sun, Teng Zhao +2
We investigate a fully-connected three-mode squeezed vacuum (FC-C3MSV) state, where all three modes are pairwise coupled through nonlinear interactions in a triangle () topolo…
Enhancing Phase Estimation in a Hybrid Interferometer via Kerr Nonlinearity and Photon Subtraction
Lifen Guo, Qingqian Kang, Zekun Zhao +5
We propose a high-precision phase estimation scheme in a hybrid interferometer by synergistically combining a Kerr nonlinear phase shifter and multi-photon subtraction operations.…
Quantum Steering and Entanglement in a Tritter: Hierarchy under Loss
Jifeng Sun, Shumin Yang, Teng Zhao +2
We present a comprehensive phase diagram of quantum correlations in a three-mode Gaussian state generated by a tritter, driven by a two-mode squeezed vacuum and a coherent state. T…
Quantum steering for two-mode states with Continuous-variable in laser channel
Kaimin Zheng, Jifeng Sun, Liyun Hu +1
The Einstein-Podolsky-Rosen steering is an important resource for one-sided device independent quantum information processing. This steering property will be destroyed during the i…
Frustrated structural instability in superconducting quasi-one-dimensional KCrAs
Keith M. Taddei, Guangzong Xing, Jifeng Sun +6
We present neutron total scattering and density functional theory studies on quasi-one-dimensional superconducting KCrAs revealing a frustrated structural instability.…
Optical and Electronic Properties of Doped -type CuI: Explanation of Transparent Conductivity from First Principles
Y. Li, J. Sun, D. J. Singh
We report properties of the reported transparent conductor CuI, including the effect of heavy -type doping. The results, based on first principles calculations, include analysis…
Electronic fitness function for screening semiconductors as thermoelectric materials
Guangzong Xing, Jifeng Sun, Yuwei Li +3
We introduce a simple but efficient electronic fitness function (EFF) that describes the electronic aspect of the thermoelectric performance. This EFF finds materials that overcome…
Reemergence of high-Tc superconductivity in the (Li1-xFex)OHFe1-ySe under high pressure
J. P. Sun, P. Shahi, H. X. Zhou +14
The pressure-induced reemergence of the second high-Tc superconducting phase (SC-II) in the alkali-metal intercalated AxFe2-ySe2 (A = K, Rb, Cs, Tl) remains an enigma and proper ch…
Electronic Properties, Screening and Efficient Carrier Transport in NaSbS2
J. Sun, D. J. Singh
NaSbS2 is a semiconductor that was recently shown to have remarkable efficacy as a solar absorber indicating efficient charge collection even in defected material. We report first…
Competition of superconductivity with the structural transition in Mo3Sb7
G. Z. Ye, J. -G. Cheng, J. -Q. Yan +8
Prior to the superconducting transition at Tc = 2.3 K, Mo3Sb7 undergoes a symmetry-lowering, cubic-to-tetragonal structural transition at Ts = 53 K. We have monitored the pressure…
Coexistence of Weyl Physics and Planar Defects in Semimetals TaP and TaAs
Tiglet Besara, Daniel A. Rhodes, Kuan-Wen Chen +10
We report a structural study of the Weyl semimetals TaAs and TaP, utilizing diffraction and imaging techniques, where we show that they contain a high density of defects, leading t…
Thermoelectric properties of -type SrTiO3
Jifeng Sun, David J. Singh
We present an investigation of the thermoelectric properties of cubic perovskite SrTiO3. The results are derived from a combination of calculated transport functions obtained from…
Competing covalent and ionic bonding in Ge-Sb-Te phase change materials
Saikat Mukhopadhyay, Jifeng Sun, Alaska Subedi +2
Ge2Sb2Te5 and related phase change materials are highly unusual in that they can be readily transformed between amorphous and crystalline states using very fast melt, quench, annea…
N-Type Oxide Thermoelectrics Via Visual Search Strategies
Guangzong Xing, Jifeng Sun, Khuong P. Ong +3
We discuss and present search strategies for finding new thermoelectric compositions based on first principles electronic structure and transport calculations. We illustrate them b…
Transport Properties of Cubic Crystalline GeSbTe: A Potential Low-temperature Thermoelectric Material
Jifeng Sun, Saikat Mukhopadhyay, Alaska Subedi +2
GeSbTe (GST) has been widely used as a popular phase change material. In this study, we show that it exhibits high Seebeck coefficients 200 - 300 V/K in its cu…
Ba_{2}TeO as an optoelectronic material: First-principles study
Jifeng Sun, Hongliang Shi, Mao-Hua Du +2
The band structure, optical and defects properties of Ba_{2}TeO are systematically investigated using density functional theory with a view to understanding its potential as an opt…
Complex magnetism and strong electronic correlations in Ce2PdGe3
R. E. Baumbach, A. Gallagher, T. Besara +6
Single crystal x-ray diffraction, magnetic susceptibility, heat capacity, and electrical resistivity measurements are reported for the new tetragonal compound CePdGe, w…
Superconductivity with extremely large upper critical fields in Nb2Pd0.81S5
Q. Zhang, G. Li, D. Rhodes +7
Here, we report the discovery of superconductivity in a new transition metal-chalcogenide compound, i.e. Nb2Pd0.81S5, with a transition temperature Tc > 6.6 K. Despite its relative…