88 citations · 648 across the 28 of their papers we have counts for
28 papers
Macroscopic position-position entanglement by photon recoil in Rydberg atoms
Xiao-Feng Shi
Entanglement between two spatially separate matter particles can be generated via many means and often resides in the internal states of particles. Here, via Rydberg blockade in tw…
Coherence-preserving cooling of nuclear spin qubits in a weak magnetic field
Xiao-Feng Shi
Nuclear spin memories of divalent neutral atoms can allow spin-preserving resolved-sideband cooling in a strong magnetic field [Phys. Rev. Lett. 99, 123001 (2007)]. We present a th…
Fast nuclear-spin entangling gates compatible with large-scale atomic arrays
Xiao-Feng Shi, Yan Lu
Nuclear-spin entangling gates with divalent atoms can be executed by one global laser pulse when , where is the Zeeman-splitting-dominated frequency…
Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity
Xiao-Feng Shi
Quantum gates and entanglement based on dipole-dipole interactions of neutral Rydberg atoms are relevant to both fundamental physics and quantum information science. The precision…
Fast atom-photon entangling gates with a superconducting coplanar waveguide
Xiao-Feng Shi
Entanglement between atoms and microwave photons in a superconducting coplanar waveguide~(SCW) can enable hybrid quantum devices and interface static and flying qubits. We study a…
Hyperentanglement of divalent neutral atoms by Rydberg blockade
Xiao-Feng Shi
Hyperentanglement~(HE), the simultaneous entanglement between two particles in more than one degrees of freedom, is relevant to both fundamental physics and quantum technology. Pre…
Quantum gates with weak van der Waals interactions of neutral Rydberg atoms
Xiao-Feng Shi, Yan Lu
Neutral atoms are promising for large-scale quantum computing, but accurate neutral-atom entanglement depends on large Rydberg interactions which strongly limit the interatomic dis…
Fast nuclear-spin gates and electrons-nuclei entanglement of neutral atoms in weak magnetic fields
Xiao-Feng Shi
We present fast Rydberg-mediated entanglement involving nuclear spins of divalent atoms with Yb as an example. First, we show a nuclear-spin controlled phase gate of an arb…
The fractional Chern insulator with Rydberg-dressed neutral atoms
Yang Zhao, Xiao-Feng Shi
Topological nontrivial bands can be realized via Rydberg-dressed neutral atoms. We propose a two-dimensional hard-core boson model with a topological ground enrgy at band on a hone…
Rydberg wire gates for universal quantum computation
Seokho Jeong, Xiao-Feng Shi, Minhyuk Kim +1
Rydberg atom arrays offer flexible geometries of strongly-interacting neutral atoms, which are useful for many quantum applications such as quantum simulation and quantum computati…
Rydberg quantum computation with nuclear spins in two-electron neutral atoms
Xiao-Feng Shi
Alkaline-earth-like~(AEL) atoms with two valence electrons and a nonzero nuclear spin can be excited to Rydberg state for quantum computing. Typical AEL ground states possess no hy…
Transition Slow-Down by Rydberg Interaction of Neutral Atoms and a Fast Controlled-NOT Quantum Gate
Xiao-Feng Shi
Exploring controllable interactions lies at the heart of quantum science. Neutral Rydberg atoms provide a versatile route toward flexible interactions between single quanta. Previo…
Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms
Xiao-Feng Shi
Neutral atom arrays are promising for large-scale quantum computing especially because it is possible to prepare large-scale qubit arrays. An unsolved issue is how to selectively e…
Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum
Xiao-Feng Shi, Dong-Jun Ma, Song-lin Dang +4
The photon Doppler velocimetry (PDV) spectrum is investigated in an attempt to reveal the particle parameters of ejecta from shock-loaded samples in a vacuum. A GPU-accelerated Mon…
Doppler-resilient ground-Rydberg transition and its application in high-fidelity entangling gates with neutral atoms
Xiao-Feng Shi
The motion-induced dephasing is a severe problem that limits the accuracy of a quantum control process by using external laser fields in neutral Rydberg atoms. This dephasing is a…
Suppress motional dephasing of ground-Rydberg transition for high-fidelity quantum control with neutral atoms
Xiao-Feng Shi
The performance of many control tasks with Rydberg atoms can be improved via suppression of the motion-induced dephasing between ground and Rydberg states of neutral atoms. The dep…
Accurate Quantum Logic Gates by Spin Echo in Rydberg Atoms
Xiao-Feng Shi
Scalable quantum computing is based on realizable accurate quantum gates. For neutral atoms, it is an outstanding challenge to design a high-fidelity two-qubit entangling gate with…
Fast, Accurate, and Realizable Two-Qubit Entangling Gates by Quantum Interference in Detuned Rabi Cycles of Rydberg Atoms
Xiao-Feng Shi
High-fidelity entangling quantum gates based on Rydberg interactions are required for scalable quantum computing with neutral atoms. Their realization, however, meets a major stumb…
Deutsch, Toffoli, and CNOT Gates via Rydberg Blockade of Neutral Atoms
Xiao-Feng Shi
Universal quantum gates and quantum error correction~(QEC) lie in the heart of quantum information science. Large-scale quantum computing depends on a universal set of quantum gate…
Universal Barenco quantum gates via a tunable non-collinear interaction
Xiao-Feng Shi
The Barenco gate~() is a type of two-qubit quantum gate based on which alone universal quantum computation can be achieved. Each is characterized by three…
Rydberg Quantum Gates Free from Blockade Error
Xiao-Feng Shi
Accurate quantum gates are basic elements for building quantum computers. There has been great interest in designing quantum logic gates by using blockade effect of Rydberg atoms r…
Annulled van der Waals interaction and fast Rydberg quantum gates
Xiao-Feng Shi, T. A. B. Kennedy
A pair of neutral atoms separated by several microns and prepared in identical s-states of large principal quantum number experience a van der Waals interaction. If microwave field…
Entanglement of neutral-atom chains by spin-exchange Rydberg interaction
Xiao-Feng Shi, F. Bariani, T. A. B. Kennedy
Conditions to achieve an unusually strong Rydberg spin-exchange interaction are investigated and proposed as a means to generate pairwise entanglement and realize a SWAP-like quant…
Nuclear spin polarization in a single quantum dot pumped by two laser beams
Xiao-Feng Shi
We theoretically investigate dynamic nuclear spin polarization in a self-assembled quantum dot pumped optically by two laser beams. With the assumption that a noncollinear interact…