Raman signatures of classical and quantum phases in coupled dots: A theoretical prediction

Details Raman signatures of classical and quantum phases in coupled dots: A theoretical prediction Raman signatures of classical and quantum phases in coupled dots: A theoretical prediction

2002-02-11

arxiv.org/abs/cond-mat/0202183v1

Europhysics Letters Vol. 58(4), pp. 555-561 (2002).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 2 postscript figures, 1 colour postscript figure, Latex 2e, Europhysics Letters style and epsfig macros. Submitted to

Scientific paper

10.1209/epl/i2002-00419-1

We study electron molecules in realistic vertically coupled quantum dots in a strong magnetic field. Computing the energy spectrum, pair correlation functions, and dynamical form factor as a function of inter-dot coupling via diagonalization of the many-body Hamiltonian, we identify structural transitions between different phases, some of which do not have a classical counterpart. The calculated Raman cross section shows how such phases can be experimentally singled out.

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