30 citations · 136 across the 16 of their papers we have counts for
17 papers
Non-Gaussian Entanglement Hierarchy Based on the Schmidt Number
Jiajie Guo, Shuheng Liu, Matteo Fadel +1
Non-Gaussian entanglement is a promising resource in various quantum tasks. A recently defined class identifies entanglement that cannot be generated by applying Gaussian operation…
Metrological Sensitivity beyond Gaussian Limits with Cubic Phase States
Jiajie Guo, Shuheng Liu, Boxuan Jing +2
Cubic phase states provide the essential non-Gaussian resource for continuous-variable quantum computing. We show that they also offer significant potential for quantum metrology,…
Detection of non-Gaussian quantum correlations through measurement-after-interaction protocols
Jiajie Guo, Feng-Xiao Sun, Matteo Fadel +1
Additional state evolutions performed before measurement, also called measurement-after-interactions (MAI) protocols, have shown a great potential for increasing the sensitivity of…
Witnessing genuine multipartite entanglement in phase space with controlled Gaussian unitaries
Lin Htoo Zaw, Jiajie Guo, Qiongyi He +2
Many existing genuine multipartite entanglement (GME) witnesses for continuous-variable (CV) quantum systems typically rely on quadrature measurements, which are challenging to imp…
Sufficient Wigner Negativity Implies Genuine Multipartite Entanglement
Lin Htoo Zaw, Jiajie Guo, Qiongyi He +2
Wigner negativity and genuine multipartite entanglement (GME) are key nonclassical resources that enable computational advantages and broader quantum-information tasks. In this wor…
Entanglement Dimensionality of Continuous Variable States From Phase-Space Quasi-Probabilities
Shuheng Liu, Jiajie Guo, Matteo Fadel +3
The dimensionality of entanglement, quantified by the Schmidt number, is a core resource for quantum information processing. While its certification is well-established in finite-d…
Distributed quantum sensing with measurement-after-interaction strategies
Jiajie Guo, Shuheng Liu, Matteo Fadel +1
We investigate multiparameter quantum estimation protocols based on measurement-after-interaction (MAI) strategies, in which the probe state undergoes an additional evolution prior…
Quantum entanglement in phase space
Shuheng Liu, Jiajie Guo, Qiongyi He +1
While commonly used entanglement criteria for continuous variable systems are based on quadrature measurements, here we study entanglement detection from measurements of the Wigner…
Quantum metrology with a squeezed Kerr oscillator
Jiajie Guo, Qiongyi He, Matteo Fadel
We study the squeezing dynamics in a Kerr-nonlinear oscillator, and quantify the metrological usefulness of the resulting states. Even if the nonlinearity limits the attainable squ…
Assisted metrology and preparation of macroscopic superpositions with split spin-squeezed states
Jiajie Guo, Fengxiao Sun, Qiongyi He +1
We analyse the conditional states in which one part of a split spin-squeezed state is left, upon performing a collective spin measurement on the other part. For appropriate measure…
Detecting Bell correlations in multipartite non-Gaussian spin states
Jiajie Guo, Jordi Tura, Qiongyi He +1
We expand the toolbox for studying Bell correlations in multipartite systems by introducing permutationally invariant Bell inequalities (PIBIs) involving few-body correlators. Firs…
Detecting Einstein-Podolsky-Rosen steering in non-Gaussian spin states from conditional spin-squeezing parameters
Jiajie Guo, Feng-Xiao Sun, Daoquan Zhu +3
We present an experimentally practical method to reveal Einstein-Podolsky-Rosen steering in non-Gaussian spin states by exploiting a connection to quantum metrology. Our criterion…
Ghost imaging with non-Gaussian quantum light
Dongyu Liu, Mingsheng Tian, Shuheng Liu +5
Non-local point-to-point correlations between two photons have been used to produce "ghost" images without placing the camera towards the object. Here we theoretically demonstrated…
A generalised multipath delayed-choice experiment on a large-scale quantum nanophotonic chip
Xiaojiong Chen, Yaohao Deng, Shuheng Liu +15
Famous double-slit or double-path experiments, implemented in a Young's or Mach-Zehnder interferometer, have confirmed the dual nature of quantum matter, When a stream of photons,…
Quantification of Wigner Negativity Remotely Generated via Einstein-Podolsky-Rosen Steering
Yu Xiang, Shuheng Liu, Jiajie Guo +4
Wigner negativity, as a well-known indicator of nonclassicality, plays an essential role in quantum computing and simulation using continuous-variable systems. Recently, it has bee…
Deep-Learning-Enabled Inverse Engineering of Multi-Wavelength Invisibility-to-Superscattering Switching with Phase-Change Materials
Jie Luo, Xun Li, Xinyuan Zhang +5
Inverse design of nanoparticles for desired scattering spectra and dynamic switching between the two opposite scattering anomalies, i.e. superscattering and invisibility, is import…
Entanglement purification of nonlocal quantum-dot-confined electrons assisted by double-sided optical microcavities
Zi-Chao Liu, Jian-Song Hong, Jia-Jie Guo +5
We present a nondestructive parity-check detector (PCD) scheme for two single-electron quantum dots embedded in double-sided optical microcavities. Using a polarization-entangled p…