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  1. Article

    Open Access

    Riemann zeros from Floquet engineering a trapped-ion qubit

    The non-trivial zeros of the Riemann zeta function are central objects in number theory. In particular, they enable one to reproduce the prime numbers. They have also attracted the attention of physicists work...

    Ran He, Ming-Zhong Ai, **-Ming Cui, Yun-Feng Huang… in npj Quantum Information (2021)

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  2. Article

    Open Access

    Long-range doublon transfer in a dimer chain induced by topology and ac fields

    The controlled transfer of particles from one site of a spatial lattice to another is essential for many tasks in quantum information processing and quantum communication. In this work we study how to induce l...

    M. Bello, C. E. Creffield, G. Platero in Scientific Reports (2016)

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    Article

    Phonon softening and dispersion in the 1D Holstein model of spinless fermions

    We investigate the effect of electron-phonon interaction on the phononic properties in the one-dimensional half-filled Holstein model of spinless fermions. By means of determinantal Quantum Monte Carlo simula...

    C. E. Creffield, G. Sangiovanni, M. Capone in The European Physical Journal B - Condense… (2005)

  4. No Access

    Chapter

    Electron Dynamics in AC-Driven Quantum Dots

    A quantum dot (QD) is a structure in which electrons can be confined to small length scales, comparable to their Fermi wavelength. A set of electrons held in such a structure is conceptually similar to a set o...

    C.E. Creffield, G. Platero in Anderson Localization and Its Ramifications (2003)

  5. No Access

    Chapter and Conference Paper

    1 Large Wigner Molecules and Quantum Dots

    The low-lying eigenstates of a system of two electrons confined within a two-dimensional quantum dot with a hard polygonal boundary are obtained by means of exact diagonalisation. The transition from a weakly ...

    C. E. Creffield, W. Häusler, J. H. Jefferson… in Statistical and Dynamical Aspects of Mesos… (2000)

  6. No Access

    Article

    Dynamics of single-particle and collective excitations from Quantum Monte Carlo

    Singular value decomposition is applied to the analytic continuation into real time of the Matsubara Green's functions obtained in Monte Carlo simulations. The spectral density of single-particle excitations, ...

    E. G. Klepfish, C. E. Creffield, P. E. Kornilovitch… in Czechoslovak Journal of Physics (1996)