5 papers
The Thermopower of Quantum Chaos
S. F. Godijn, S. Moeller, H. Buhmann +2
The thermovoltage of a chaotic quantum dot is measured using a current heating technique. The fluctuations in the thermopower as a function of magnetic field and dot shape display…
Charge Fluctuations in Quantum Point Contacts and Chaotic Cavities in the Presence of Transport
M. H. Pedersen, S. A. van Langen, M. Buttiker
We analyze the frequency-dependent current fluctuations induced into a gate near a quantum point contact or a quantum chaotic cavity. We use a current and charge conserving, effect…
Distribution of parametric conductance derivatives of a quantum dot
P. W. Brouwer, S. A. van Langen, K. M. Frahm +2
The conductance G of a quantum dot with single-mode ballistic point contacts depends sensitively on external parameters X, such as gate voltage and magnetic field. We calculate the…
Quantum-Statistical Current Correlations in Multi-Lead Chaotic Cavities
S. A. van Langen, M. Buttiker
Quantum mechanics requires that identical particles are treated as indistinguishable. This requirement leads to correlations in the fluctuating properties of a system. Theoretical…
Fluctuating "order parameter" for a quantum chaotic system with partially broken time-reversal symmetry
S. A. van Langen, P. W. Brouwer, C. W. J. Beenakker
The functional defined as the squared modulus of the spatial average of the wave function squared, plays the role of an ``order parameter'' for the transition between Hamiltonian e…