Mingxia Huo

Beijing Jingshida Electromechanical Equipment Research Institute

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Ying Li

Zhuhai Institute of Advanced Technology

Dimitris G. Angelakis

Technical University of Crete

L. C. Kwek

Nanyang Technological University

Z. Song

Nankai University

Ying Li

Nanjing University of Information Science and Technology

D. A. W. Hutchinson

University of Otago

Wei Nie

Chongqing University of Posts and Telecommunications

Changsuk Noh

Kyungpook National University

Darrick E. Chang

Institute of Photonic Sciences

Chang-Pu Sun

China Academy of Engineering Physics

Cooperative Institutions

Chinese Academy of Sciences

National University of Singapore

Centre for Quantum Technologies

Harbin Institute of Technology

University of Chinese Academy of Sciences

Panzhihua University

Nanjing University

Nankai University

North China Electric Power University

Fudan University

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Quantum operation of fermionic systems and process tomography using Majorana fermion gates

arXiv (Cornell University) (2021)

Gang Zhang Mingxia Huo Ying Li

Quantum tomography is an important tool for the characterisation of quantum operations. In this paper, we present a framework of quantum tomography in fermionic systems. Compared with qubit systems, fermions obey the superselection rule, which sets constraints on states, processes and measurements in a fermionic system. As a result, we can only partly reconstruct an operation that acts on a subset of fermion modes, and the full reconstruction always requires at least one ancillary fermion mode in addition to the subset. We also report a protocol for the full reconstruction based on gates in Majorana fermion quantum computer, including a set of circuits for realising the informationally-complete state preparation and measurement.

10.48550/arxiv.2102.00620

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THE PHOTON-LIKE FLYING QUBIT IN THE COUPLED CAVITY ARRAY

International Journal of Quantum Information (2012)

Mingxia Huo Ying Li Z. Song Chang-Pu Sun

We propose the simulation for an effective scheme to realize a spin network with tunable long-range couplings in the coupled cavity array with external multi-driving lasers. Via this scheme, the linear photon-like dispersion relation is achievable, which could be employed to perform a perfect quantum state transfer. Numerical results show that when applying two lasers in each cavity, the fidelity is higher than the highest fidelity of a classical transfer even for the transfer distance l increases up to 100 sites. In the simulation, as the number of lasers increases, the fidelity will be evidently enhanced for a wide range of l.

High fidelity

10.1142/s0219749912500025

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Quantum simulations of cooper pairing and driven nonlinear Schr\"{o}dinger equation with stationary light

Bulletin of the American Physical Society (2013)

Priyam Das Mingxia Huo Changsuk Noh B. M. Rodríguez-Lara Dimitris G. Angelakis

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Probing Mott lobes via the AC Josephson effect

arXiv (Cornell University) (2008)

Mingxia Huo Ying Li Zhida Song C. P. Sun

The alternating-current (AC) Josephson effect is studied in a system consisting of two weakly coupled Bose Hubbard models. In the framework of the mean field theory, Gross-Pitaevskii equations show that the amplitude of the Josephson current is proportional to the product of superfluid order parameters. In addition, the chemical potential--current relation for a small size system is obtained via the exact numerical computation. This allows us to propose a feasible experimental scheme to measure the Mott lobes of the quantum phase transition.

10.48550/arxiv.0803.0059

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Pinning quantum phase transition of photons in a hollow-core fiber

Bulletin of the American Physical Society (2013)

Mingxia Huo Dimitris G. Angelakis

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Gate-set tomography of fermionic systems using Majorana-fermion operations

Physical review. A/Physical review, A (2021)

Gang Zhang Mingxia Huo Ying Li

Quantum tomography is an important tool for the characterization of quantum operations. In this paper we present a framework of quantum tomography in fermionic systems. Compared with qubit systems, fermions obey the superselection rule, which sets constraints on states, processes, and measurements in a fermionic system. As a result, we can only partly reconstruct an operation that acts on a subset of fermion modes and the full reconstruction always requires at least one ancillary fermion mode in addition to the subset. We also report a protocol for the full reconstruction based on gates in a Majorana-fermion quantum computer, including a set of circuits for realizing the informationally complete state preparation and measurement.

Superselection

Majorana fermion

10.1103/physreva.103.032431

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Photon-like flying qubit in the coupled cavity array

arXiv (Cornell University) (2008)

Ying Li Mingxia Huo Zhijun Song Che Sun

We propose a feasible scheme to realize a spin network via a coupled cavity array with the appropriate arrangement of external multi-driving lasers. It is demonstrated that the linear photon-like dispersion is achievable and this property opens up the possibility of realizing the pre-engineered spin network which is beneficial to quantum information processing.

10.48550/arxiv.0802.0079

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Spinons and holons with polarized photons in a nonlinear waveguide

New Journal of Physics (2012)

Mingxia Huo Dimitris G. Angelakis L. C. Kwek

We show that the spin-charge separation predicted for correlated fermions in one dimension, could be observed using polarized photons propagating in a nonlinear optical waveguide. Using coherent control techniques and employing a cold atom ensemble interacting with the photons, large nonlinearities in the single photon level can be achieved. We show that the latter can allow for the simulation of a strongly interacting gas, which is made of stationary dark-state polaritons of two species and then shown to form a Luttinger liquid of effective fermions for the right regime of interactions. The system can be tuned optically to the relevant regime where the spin-charge separation is expected to occur. The characteristic features of the separation as demonstrated in the different spin and charge densities and velocities can be efficiently detected via optical measurements of the emitted photons with current optical technologies.

Waveguide

10.1088/1367-2630/14/7/075027

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Fuzzy control of photovoltaic MPPT based on current perturbation

Deshui Yu Yonggang Li Yichen Zhou Xiaoshuai Shi Huiqiang Liu

In order to improve the current fast tracking ability, a fuzzy control method of photovoltaic MPPT based on current perturbation is proposed. This method combines the current perturbation with the fuzzy control strategy and combines the perturbation method to change the perturbation step length. In this paper, a 10 kW PV model is established in MATLAB/Simulink, and compared with the traditional perturbation observation method. The experimental results show that the proposed maximum power tracking method gives the system good static and dynamic performance.

10.1109/iaeac.2017.8054301

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A Luttinger liquid of photons and spin-charge separation in hollow-core waveguides

Bulletin of the American Physical Society (2013)

Dimitris G. Angelakis Mingxia Huo Elica Kyoseva L. C. Kwek

Luttinger liquid

Separation (statistics)

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