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Ultra-tight confinement of atoms in Rydberg quantum lattice

POSTER

Abstract

Tight confinement of single sites in conventional lattices requires excessive laser intensity which in turn suppresses the coherence. This talk proposes a scheme for atomic lattice with sub-wavelength structure. The atom-light coupling combined with Rydberg interaction has opened a wide range of applications in quantum technology [1-11]. This presentation utilises the nonlinear optical response of the three-level Rydberg-dressed atoms to form ultra-narrow trapping potentials [12]. The lattice consists of a 3D array of ultra-narrow Lorentzian wells with sub-nanometer widths.The interaction-induced two-body resonance that forms the trapping potential [13], only occurs at a peculiar laser intensity, localizing the trap sites to ultra-narrow regions over the standing-wave driving field. The tight confinement is desired for quantum logic operations with Rydberg-Fermi interaction [14-15] and quantum walks [16].



References:

[1]M. Khazali, K. Mølmer, Phys. Rev. X 10, 021054 (2020).

[2]M. Khazali, Phys. Rev. A 98, 043836 (2018)

[3]M. Khazali, H. W. Lau, A. Humeniuk, C. Simon, Phys. Rev. A 94, 023408 (2016)

[4]M. Khazali, K. Heshami, C. Simon, Phys. Rev. A 91, 030301 (2015)

[5]M. Khazali, C. Murry, T. Pohl, Phys. Rev. Lett. 123, 113605 (2019)

[6]M. Khazali, K. Heshami, C. Simon J. Phys. B, 50, 21 (2017)

[7]M. Khazali, Optics Express 31(9), 13970-13980 (2023)

[8]H Kaviani, et. al, New J. Phys. 15, 085029 (2013)

[9]M. Khazali, IJAP 10, 19 (2021)

[10]Khazali, Mohammadsadegh. "Applications of Atomic Ensembles for Photonic Quantum Information Processing and Fundamental Tests of Quantum Physics." Ph.D. thesis, University of Calgary (2016)

[11] Khazali, Mohammadsadegh. "Fast generation of multi-component cat states under the Strong Rydberg Dressing Regime." arXiv preprint arXiv:2312.11432 (2023)[12]Khazali, M. (2023). Subnanometer confinement and bundling of atoms in a Rydberg empowered optical lattice. arXiv preprint arXiv:2301.04450

[13]M Khazali, Phys. Rev. Research 3, L032033 (2021)

[14]Khazali, M., & Lechner, W. Communications Physics 6, 57 (2023)

[15]Khazali, M. (2022). arXiv preprint arXiv:2204.08522

[16]M. Khazali, Quantum 6, 664 (2022)

Presenters

  • Mohammadsadegh Khazali

    University of Tehran

Authors

  • Mohammadsadegh Khazali

    University of Tehran