760 citations · 2.5k across the 39 of their papers we have counts for
39 papers
Sympathetic cooling and slowing of molecules with Rydberg atoms
Chi Zhang, Seth T. Rittenhouse, Timur V. Tscherbul +2
We propose to sympathetically slow and cool polar molecules in a cold, low-density beam using laser-cooled Rydberg atoms. The elastic collision cross sections between molecules and…
Observation of 1D Fermi arc states in Weyl semimetal TaAs
Xiaohu Zheng, Qiangqiang Gu, Yiyuan Liu1 +6
Fermi arcs on Weyl semimetals exhibit many exotic quantum phenomena. Usually considered on atomically-flat surfaces with approximate translation symmetry, Fermi arcs are rooted in…
Engineering field-insensitive molecular clock transitions for symmetry violation searches
Yuiki Takahashi, Chi Zhang, Arian Jadbabaie +1
Molecules are a powerful platform to probe fundamental symmetry violations beyond the Standard Model, as they offer both large amplification factors and robustness against systemat…
Simultaneous nonreciprocal and ultra-strong coupling in cavity magnonics
Chi Zhang, Zhenhui Hao, Yongzhang Shi +5
We demonstrate the simultaneous realization of nonreciprocal coupling and ultra-strong coupling in cavity magnonics. By replacing a copper cylinder with a yttrium iron garnet cylin…
Non-Hermitian dynamics and -symmetry breaking in interacting mesoscopic Rydberg platforms
José A. S. Lourenço, Gerard Higgins, Chi Zhang +2
We simulate the dissipative dynamics of a mesoscopic system of long-range interacting particles which can be mapped into non-Hermitian spin models with a symmetry. W…
Micromotion minimization using Ramsey interferometry
Gerard Higgins, Shalina Salim, Chi Zhang +3
We minimize the stray electric field in a linear Paul trap quickly and accurately, by applying interferometry pulse sequences to a trapped ion optical qubit. The interferometry seq…
Origin of Nonlinear Damping due to Mode Coupling in Auto-Oscillatory Modes Strongly Driven by Spin-Orbit Torque
Inhee Lee, Chi Zhang, Simranjeet Singh +2
We investigate the physical origin of nonlinear damping due to mode coupling between several auto-oscillatory modes driven by spin-orbit torque in constricted Py/Pt heterostructure…
Spin orbit torque nano-oscillators by dipole field-localized spin wave modes
Chi Zhang, Inhee Lee, Yong Pu +3
We demonstrate a high-quality spin orbit torque nano-oscillator comprised of spin wave modes confined by the magnetic field by the strongly inhomogeneous dipole field of a nearby m…
Nonreciprocal Multi-mode and Indirect Couplings in Cavity Magnonics
Chi Zhang, Chenglong Jia, Yongzhang Shi +4
We investigate the magnon-photon couplings by employing a small magnet within an irregular resonant cavity, which leads to a desirable nonreciprocity with a big isolation ratio. Mo…
Exploring the many-body dynamics near a conical intersection with trapped Rydberg ions
Filippo Maria Gambetta, Chi Zhang, Markus Hennrich +2
Conical intersections between electronic potential energy surfaces are paradigmatic for the study of non-adiabatic processes in the excited states of large molecules. However, sinc…
Magic trapping of a Rydberg ion with a diminished static polarizability
Fabian Pokorny, Chi Zhang, Gerard Higgins +1
Highly excited Rydberg states are usually extremely polarizable and exceedingly sensitive to electric fields. Because of this Rydberg ions confined in electric fields have state-de…
Observation of effects due to an atom's electric quadrupole polarizability
Gerard Higgins, Chi Zhang, Fabian Pokorny +4
The response of matter to fields underlies the physical sciences, from particle physics to astrophysics, and from chemistry to biophysics. We observe an atom's response to an elect…
Long-range multi-body interactions and three-body anti-blockade in a trapped Rydberg ion chain
Filippo Maria Gambetta, Chi Zhang, Markus Hennrich +2
Trapped Rydberg ions represent a flexible platform for quantum simulation and information processing which combines a high degree of control over electronic and vibrational degrees…
Integrated optical multi-ion quantum logic
Karan K. Mehta, Chi Zhang, Maciej Malinowski +3
Practical and useful quantum information processing (QIP) requires significant improvements with respect to current systems, both in error rates of basic operations and in scale. I…
Sub-microsecond entangling gate between trapped ions via Rydberg interaction
Chi Zhang, Fabian Pokorny, Weibin Li +4
Generating quantum entanglement in large systems on time scales much shorter than the coherence time is key to powerful quantum simulation and computation. Trapped ions are among t…
Highly-polarizable ion in a Paul trap
Gerard Higgins, Fabian Pokorny, Chi Zhang +1
Usually the influence of the quadratic Stark effect on an ion's trapping potential is minuscule and only needs to be considered in atomic clock experiments. In this work we excite…
Tracking the dynamics of an ideal quantum measurement
Fabian Pokorny, Chi Zhang, Gerard Higgins +3
The existence of ideal quantum measurements is one of the fundamental predictions of quantum mechanics. In theory the measurement projects onto the eigenbasis of the measurement ob…
Fundamental Spin Interactions Underlying the Magnetic Anisotropy in the Kitaev Ferromagnet CrI
Inhee Lee, Franz G. Utermohlen, Kyusung Hwang +6
We lay the foundation for determining the microscopic spin interactions in two-dimensional (2D) ferromagnets by combining angle-dependent ferromagnetic resonance (FMR) experiments…
Thermopower and Nernst measurements in a half-filled lowest Landau level
Xiaoxue Liu, Tingxin Li, Po Zhang +4
Motivated by recent proposal by Potter et al. [Phys. Rev. X 6, 031026 (2016)] concerning possible thermoelectric signatures of Dirac composite fermions, we perform a systematic exp…
Probing the limits of correlations in an indivisible quantum system
M. Malinowski, C. Zhang, F. M. Leupold +3
We employ a trapped ion to study quantum contextual correlations in a single qutrit using the 5-observable KCBS inequality, which is arguably the most fundamental non-contextuality…
Three-Dimensional Anisotropic Magnetoresistance in the Dirac Node-Line Material ZrSiSe
Haiyang Pan, Bingbing Tong, Jihai Yu +8
The family of materials defined as ZrSiX (X = S, Se, Te) has been established as Dirac node-line semimetals, and subsequent study is urgent to exploit the promising application of…
Low-Frequency Microwave Induced Quantum Oscillations in A Two-Dimensional Electron System
Jian Mi, Huiying Liu, Junren Shi +4
We study the magnetoresistance of an ultrahigh mobility GaAs/AlGaAs two-dimensional electron sample in a weak magnetic field under low-frequency (f < 20 GHz) microwave (MW) irradia…
Coherent control of a single trapped Rydberg ion
Gerard Higgins, Fabian Pokorny, Chi Zhang +2
Trapped Rydberg ions are a promising novel approach to quantum computing and simulations. They are envisaged to combine the exquisite control of trapped ion qubits with the fast tw…
Electron scattering in tantalum monoarsenide
Cheng-Long Zhang, Zhujun Yuan, Qing-Dong Jiang +4
We report comprehensive studies of the single crystal growth and electrical transport properties for various samples of TaAs, the first experimentally confirmed inversion symmetry-…