Universal vortex formation in rotating traps with bosons and fermions

M Toreblad, M Borgh, M Koskinen, M Manninen… - Physical review …, 2004 - APS
We show that the rotation of trapped quantum mechanical particles with a repulsive
interaction can lead to vortex formation, irrespective of whether the particles are bosons or …

Intermediate low spin states in a few-electron quantum dot in the regime

Y Nishi, PA Maksym, DG Austing, T Hatano… - Physical Review B …, 2006 - APS
We study the effects of electron-electron interactions in a circular few-electron vertical
quantum dot in such a strong magnetic field that the filling factor ν⩽ 1. We measure …

Fractional quantum Hall effect in the second Landau level: The importance of inter-composite-fermion interaction

C Töke, MR Peterson, GS Jeon, JK Jain - Physical Review B—Condensed …, 2005 - APS
Exact diagonalization of a two-dimensional electron gas in a strong magnetic field in the disk
geometry shows that there exists a filling-factor range in the second Landau level where the …

Quantum phases in artificial molecules

M Rontani, F Troiani, U Hohenester… - Solid state communications, 2001 - Elsevier
The few-particle state of carriers confined in a quantum dot is controlled by the balance
between their kinetic energy and their Coulomb correlation. In coupled quantum dots, both …

Quantum-dot lithium in the strong-interaction regime: Depolarization of electron spins by a magnetic field

SA Mikhailov, NA Savostianova - Physical Review B, 2002 - APS
A magnetic field usually leads to polarization of electron spins. It is shown that in a system of
strongly interacting particles applying a magnetic field may lead to the opposite effect …

Spin blockade in single and double quantum dots in magnetic fields: a correlation effect

H Imamura, H Aoki, PA Maksym - Physical Review B, 1998 - APS
The total spin of correlated electrons in a quantum dot changes with magnetic field and this
effect is generally linked to the change in the total angular momentum from one magic …

Few-anyon systems in a parabolic dot

R Perez, A Gonzalez - Physical Review B, 1998 - APS
The energy levels of two and three anyons in a two-dimensional parabolic quantum dot and
a perpendicular magnetic field are computed as power series in 1/| J|, where J is the angular …

Unified microscopic approach to the interplay of pinned-Wigner-solid and liquid behavior of the lowest Landau-level states in the neighborhood of

C Yannouleas, U Landman - Physical Review B—Condensed Matter and …, 2011 - APS
Recently observed microwave resonances in the spectrum of a two-dimensional electon gas
under high magnetic fields in the neighborhood of the fractional filling ν= 1/3 were …

Wigner crystallization in the two electron quantum dot

A Matulis, FM Peeters - Solid state communications, 2001 - Elsevier
Wigner crystallization can be induced in a quantum dot by increasing the effective electron–
electron interaction through a decrease of the electron density or by the application of a …

Exchange interaction in quantum rings and wires in the Wigner-crystal limit

MM Fogler, E Pivovarov - Physical Review B—Condensed Matter and …, 2005 - APS
We present a controlled method for computing the exchange coupling in correlated one-
dimensional electron systems based on the relation between the exchange constant and the …