Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Rontani, M."'
Publikováno v:
Nature Physics 9, 576-581 (2013)
Coulomb interactions can have a decisive effect on the ground state of electronic systems. The simplest system in which interactions can play an interesting role is that of two electrons on a string. In the presence of strong interactions the two ele
Externí odkaz:
http://arxiv.org/abs/1302.1877
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 50, 065301 (2017)
The configuration interaction (CI) method for calculating the exact eigenstates of a quantum-mechanical few-body system is problematic when applied to particles interacting through contact forces. In dimensions higher than one the approach fails due
Externí odkaz:
http://arxiv.org/abs/0810.4305
Publikováno v:
Physical Review Letters 102, 060401 (2009)
The microscopic properties of few interacting cold fermionic atoms confined in a two-dimensional (2D) harmonic trap are studied by numerical diagonalization. For repulsive interactions, a strong shell structure dominates, with Hund's rule acting at i
Externí odkaz:
http://arxiv.org/abs/0806.3780
Autor:
Ota, T., Rontani, M., Tarucha, S., Nakata, Y., Song, H. Z., Miyazawa, T., Usuki, T., Takatsu, M., Yokoyama, N.
Publikováno v:
Phys. Rev. Lett. 95, 236801 (2005)
We study electronic configurations in a single pair of vertically coupled self-assembled InAs quantum dots, holding just a few electrons. By comparing the experimental data of non-linear single-electron transport spectra in a magnetic field with many
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510213
Publikováno v:
Phys. Rev. Lett. 95, 066806 (2005)
We use a configuration-interaction approach and Fermi golden rule to investigate electron-phonon interaction in realistic multi-electron quantum dots. Lifetimes are computed in the low-density, highly correlated regime. We report numerical evidence t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506743
Autor:
Ota, T., Stopa, M., Rontani, M., Hatano, T., Yamada, K., Tarucha, S., Song, H. Z., Nakata, Y., Miyazawa, T., Ohshima, T., Yokoyama, N.
Publikováno v:
Superlattices and Microstructures, Vol. 34, Issues 3-6, p. 159 (2003)
Molecular states in a SINGLE PAIR of strongly coupled self-assembled InAs quantum dots are investigated using a sub-micron sized single electron transistor containing just a few pairs of coupled InAs dots embedded in a GaAs matrix. We observe a serie
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401576
Publikováno v:
Physical Review B, Vol. 69, p. 85327 (2004).
We present excitation energy spectra of few-electron vertically coupled quantum dots for strong and intermediate inter-dot coupling. By applying a magnetic field, we induce ground state transitions and identify the corresponding quantum numbers by co
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401145
Publikováno v:
In Journal of Epidemiology and Population Health March 2024 72 Supplement 1
We present a theoretical analysis of the effect of dielectric confinement on the Coulomb interaction in dielectrically modulated quantum structures. We discuss the implications of the strong enhancement of the electron-hole and electron-electron coup
Externí odkaz:
http://arxiv.org/abs/cond-mat/9906338
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures 2008 40(6):1804-1806