• Control of tunneling in an atomtronic switching device 

      Wilsmann, Karin Wittmann; Ymai, Leandro Hayato; Tonel, Arlei Prestes; Links, Jon; Foerster, Angela (2018) [Artículo de periódico]
      The precise control of quantum systems will play a major role in the realization of atomtronic devices. As in the case of electronic systems, a desirable property is the ability to implement switching. Here we show how to ...
    • Copper gettering at half the projected ion range induced by low-energy channeling He implantation into silicon 

      Fichtner, Paulo Fernando Papaleo; Behar, Moni; Kaschny, Jorge Ricardo de Araujo; Peeva, Anita; Koegler, Reinhard; Skorupa, Wolfgang (2000) [Artículo de periódico]
      He1 ions were implanted at 40 keV into Si <100> channel direction at room temperature (RT) and at 350 °C. The Si samples were subsequently doped with Cu in order to study the gettering of Cu atoms at the defective layer. ...
    • Coupled dynamics of interacting spin-1 bosons in a double-well potential 

      Carvalho, David William Sabino; Foerster, Angela; Gusmao, Miguel Angelo Cavalheiro (2018) [Artículo de periódico]
      We present a detailed analysis of dynamical processes involving two or three particles in a double-well potential. Motivated by experimental realizations of such a system with optically trapped cold atoms, we focus on ...
    • Ground states of spin-1 bosons in asymmetric double wells 

      Carvalho, David William Sabino; Foerster, Angela; Gusmao, Miguel Angelo Cavalheiro (2015) [Artículo de periódico]
      In this work we investigate the different states of a system of spin-1 bosons in two potential wells connected by tunneling, with spin-dependent interaction. The model utilizes the well-known Bose-Hubbard Hamiltonian, ...
    • Tunneling spectroscopy of few-monolayer NbSe2 in high magnetic fields : triplet superconductivity and Ising protection 

      Kuzmanovic, Marko; Dvir, Tom; LeBoeuf, David; Ilic, Stefan; Haim, Menashe; Möckli, David; Kramer, Steffen; Khodas, Maxim; Houzet, Manuel; Meyer, Julia S.; Aprili, Marco; Steinberg, Hadar; Quay, Charis H. L. (2022) [Artículo de periódico]
      In conventional Bardeen-Cooper-Schrieffer superconductors, Cooper pairs of electrons of opposite spin (i.e., singlet structure) form the ground state. Equal-spin triplet pairs (ESTPs), as in superfluid 3 He, are of great ...
    • Two-site Bose-Hubbard model with nonlinear tunneling : classical and quantum analysis 

      Lima, Diefferson Rubeni da Rosa de; Links, Jon; Isaac, Phillip S.; Foerster, Angela (2017) [Artículo de periódico]
      The extended Bose-Hubbard model for a double-well potential with atom-pair tunneling is studied. Starting with a classical analysis we determine the existence of three quantum phases: self-trapping, phase-locking, and ...