Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot

Details Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot

1996-10-30

arxiv.org/abs/cond-mat/9610214v1

Phys. Rev. B 55, 5297 (1997).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

REVTeX, 23 pages, 6 figures, accepted for publication in PRB

Scientific paper

10.1103/PhysRevB.55.5297

We study the effect of electron-electron (e-e) interactions on compressibility, capacitance and inverse compressibility of electrons in a quantum dot or a small metallic grain. The calculation is performed in the random-phase approximation. As expected, the ensemble-averaged compressibility and capacitance decreases as a function of the interaction strength, while the mean inverse compressibility increases. Fluctuations of the compressibility are found to be strongly suppressed by the e-e interactions. Fluctuations of the capacitance and inverse compressibility also turn out to be much smaller than their averages. The analytical calculations are compared with the results of a numerical calculation for the inverse compressibility of a disordered tight-binding model. Excellent agreement for weak interaction values is found. Implications for the interpretation of current experimental data are discussed.

Affiliated with

Also associated with

No associations

Rating

Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compressibility, capacitance and ground state energy fluctuations in a weakly interacting quantum dot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-618667