Lancaster University Centre for Nanoscale Dynamics and Mathematical Modelling

Nanoelectronics and photonics

The last decade has witnessed unprecedented developments in the fabrication of nanoelectronic and nanophotonic devices and microlasers based upon quantum electronic and quantum optical effects which have no classical analogue. The combination of these properties opens up a new territory in fundamental science.

Our research lays the theoretical foundations for the cooperative interplay of electrons and photons in quantum conductors, quantum dots, mesoscopic and superconducting circuits, and micro-cavity lasers. This brings together concepts of mesoscopic physics, quantum optics, quantum dynamics, and electronic correlations.

Image of a photon-emitting biased quantum point contact

Schematic diagram of a nanometer-sized constriction in a quantum-mechanical conductor (bottom) and the energy range of electronic states (top), showing excitations of electrons (black dots) and holes (white dots) when a voltage V is applied. Electronic transitions (arrows) can be used to generate photons (of frequency ω) with non-classical properties.

Image of a radiation pattern of an annular dielectric microresonator

Radiation pattern of an annular dielectric microresonator

List of publications

Nonexponential decoherence and momentum subdiffusion in a quantum Levy kicked rotator Physical Review Letters 98, 260401 (2007) H. Schomerus, E. Lutz Download pdf document
Correcting ray optics at curved dielectric microresonator interfaces: Phase-space unification of Fresnel filtering and the Goos-Hanchen shift Physical Review Letters 96, 243903 (2006) H. Schomerus, M. Hentschel Download pdf document
Quantum-to-classical correspondence in open chaotic systems Journal of Physics A-Mathematical and General 38, 10663 (2005) H. Schomerus, P. Jacquod Download pdf document
Quantum andreev map: A paradigm of quantum chaos in superconductivity Physical Review Letters 90, 207004 (2003) P. Jacquod, H. Schomerus, C. W. J. Beenakker Download pdf document
Fresnel laws at curved dielectric interfaces of microresonators Physical Review E 65, 045603 (2002) M. Hentschel, H. Schomerus Download pdf document
Counting statistics of photons produced by electronic shot noise Physical Review Letters 86, 700 (2001) C. W. J. Beenakker, H. Schomerus Download pdf document