• Photonics Research
  • Vol. 10, Issue 6, 1430 (2022)
Hao Tang1、2、†, Tian-Yu Wang1、2、†, Zi-Yu Shi1、2, Zhen Feng1、2, Yao Wang1、2, Xiao-Wen Shang1、2, Jun Gao1、2, Zhi-Qiang Jiao1、2, Zhan-Ming Li1、2, Yi-Jun Chang1、2, Wen-Hao Zhou1、2, Yong-Heng Lu1、2, Yi-Lin Yang1、2, Ruo-Jing Ren1、2, Lu-Feng Qiao1、2, and Xian-Min Jin1、2、3、*
Author Affiliations
  • 1Center for Integrated Quantum Information Technologies (IQIT), School of Physics and Astronomy, State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • 3TuringQ Co., Ltd., Shanghai 200240, China
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    DOI: 10.1364/PRJ.439637 Cite this Article Set citation alerts
    Hao Tang, Tian-Yu Wang, Zi-Yu Shi, Zhen Feng, Yao Wang, Xiao-Wen Shang, Jun Gao, Zhi-Qiang Jiao, Zhan-Ming Li, Yi-Jun Chang, Wen-Hao Zhou, Yong-Heng Lu, Yi-Lin Yang, Ruo-Jing Ren, Lu-Feng Qiao, Xian-Min Jin. Experimental quantum simulation of dynamic localization on curved photonic lattices[J]. Photonics Research, 2022, 10(6): 1430 Copy Citation Text show less

    Abstract

    Dynamic localization, which originates from the phenomena of particle evolution suppression under an externally applied AC electric field, has been simulated by suppressed light evolution in periodically curved photonic arrays. However, experimental studies on their quantitative dynamic transport properties and application for quantum information processing are rare. Here we fabricate one-dimensional and hexagonal two-dimensional arrays both with sinusoidal curvatures. We successfully observe the suppressed single-photon evolution patterns, and for the first time, to the best of our knowledge, measure the variances to study their transport properties. For one-dimensional arrays, the measured variances match both the analytical electric-field calculation and the quantum walk Hamiltonian engineering approach. For hexagonal arrays as anisotropic effective couplings in four directions are mutually dependent, the analytical approach suffers, whereas quantum walk conveniently incorporates all anisotropic coupling coefficients in the Hamiltonian and solves its exponential as a whole, yielding consistent variances with our experimental results. Furthermore, we implement a nearly complete localization to show that it can preserve both the initial injection and the wave packet after some evolution, acting as a memory of a flexible time scale in integrated photonics. We demonstrate a useful quantum simulation of dynamic localization for studying their anisotropic transport properties and a promising application of dynamic localization as a building block for quantum information processing in integrated photonics.
    H=iNβiaiai+ijNCi,jaiaj,

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    Ceff=C0J0(2πωAL),

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    σ(z)2=i=1N(Δli)2Pi(z)i=1NPi(z),

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    σ(z)2=σ0(z)2J02(2πωAL),

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    iEz+2Ex2+VE=0.(A1)

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    E(x,z)=mΨm(z)um(x)exp(iβz),(A2)

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    iΨmz=C(Ψm+1+Ψm1)+ωx¨d(z)Ψm,(A3)

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    iΨmt=C(Ψm+1+Ψm1)+qε(t)Ψm,(A4)

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    Ceff=CL0Lcos[ωx˙d(z)]dz,(B1)

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    Ceff=C0J0(2πωAL).(B2)

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    σ(z)2=2C2[u2(z)+v2(z)],(D1)

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    u(z)=0zcos[2πωALη(z)]dz,(D2)

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    v(z)=0zsin[2πωALη(z)]dz.(D3)

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    σ(z)2=2C2z2[J02(2πωAL)+f1(z)J0(2πωAL)+f2(z)],(D4)

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    σ(z)2=2C2z2[J02(2πωAL)].(D5)

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    Cu(z)Path I=C3dh0zcos[23πωALη(z)]dz.(D6)

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    Cu(z)Path II=Cdh300zcos[2πωAcos30Lη(z)]dz.(D7)

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    Cu(z)Path IIICdv+Cdh3020Δz1+Δz4cos[2πωAcos90Lη(z)]dz0Δz2+Δz3cos[2πωAcos30Lη(z)]dzCdv+Cdh302(Δz1+Δz4)0Δz2+Δz3cos[2πωAcos30Lη(z)]dz,(D8)

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    gxy(2)=NxyTNxNyτ,(E1)

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    (gec(2))2gee(2)gcc(2).(E2)

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    (gec(2))2gee(2)gcc(2)δtotal,(E3)

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    δtotal=(2gec(2)δgec(2))2+(gee(2)δgee(2))2+(gcc(2)δgcc(2))2(E4)

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    Hao Tang, Tian-Yu Wang, Zi-Yu Shi, Zhen Feng, Yao Wang, Xiao-Wen Shang, Jun Gao, Zhi-Qiang Jiao, Zhan-Ming Li, Yi-Jun Chang, Wen-Hao Zhou, Yong-Heng Lu, Yi-Lin Yang, Ruo-Jing Ren, Lu-Feng Qiao, Xian-Min Jin. Experimental quantum simulation of dynamic localization on curved photonic lattices[J]. Photonics Research, 2022, 10(6): 1430
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