My research areas are quantum theory, many-body physics, and mesoscopics. At the moment, my main interests are in models for quantum optical, quantum coherent, and many-body  effects, mainly in electronic systems. Recent works are on

- Electronic transport and noise in mesoscopic systems.
- Quantum entanglement, quantum chaos, and quantum phase transitions in the Dicke model.
- Quantum optical and coherent phenomena in electronic transport, adiabatic steering.
- AC driven mesoscopic transport.
- Interactions in quantum wires.

REVIEW ARTICLE
Coherent and Collective Quantum Optical Effects in Mesoscopic Systems
160 pages, 57 figures. Physics Reports 408/5-6, pp. 315-474 (2005), T. Brandes  [html],  [cond-mat/0409771]    [pdf]

Publications

Scientific Genealogy:
Tobias Brandes (1994) - Bernhard Kramer (1967) – Otfried Madelung (1950) – Werner Heisenberg (1923) – Arnold Sommerfeld (1891) – Carl Lindemann (1873) - Christian Felix Klein (1868) – Julius Pluecker (1823) – Christian Ludwig Gerling (1812) – Carl Friedrich Gauss (1799).

Recent Projects:

- Quantum chaos, quantum phase transitions, and entanglement in spin-boson systems (with C. Emary, San Diego; N. Lambert, Manchester).
- Dicke superradiance effects in electronic systems; adiabatic steering, decoherence in double dot qubits  (with T. Vorrath, Hamburg).
- Nonlinear electron transport theory, AC effects, noise and dissipation in  coupled quantum dots (with R. Aguado, Madrid; G. Platero, Madrid).
- Phonons in free-standing structures, suppression of decoherence in artificial qubits (with S. Debald, Hamburg, and E. Hoehberger, R. H. Blick, Munich).
- Coherent population trapping and dark resonances (with B. Sanchez, Manchester and F. Renzoni, now UCL).
- Mesoscopic transport- and scattering-theories in photon/phonon cavities (with N. Lambert, J. Robinson, Manchester).
- Superradiance and  Entanglement of Quantum Dot Excitons (with Y. N. Chen, D. S. Chuu, Taiwan).
- Nanoparticle suspensions in critical fluids, charging effects in electrolytes (with L. Lue, Manchester and Y. Ding, Leeds)

PhD students:

Jin Jun Liang, Manchester (05-): Many-body effects and entanglement in quantum transport.

Neill Lambert, Manchester (02-05): Critical entanglement and noise in mesoscopic systems.

Stefan Debald, Hamburg (01-05, with B. Kramer): Interaction and confinement in nanostructures: spin-orbit coupling and electron-phonon scattering.
Till Vorrath, Hamburg (00-04, with B. Kramer) : Dissipation-induced collective effects in two-level systems.
Bernardo Sanchez, Manchester (00-03): Driven Three-Level Systems with Damping

Postdocs
Clive Emary, Manchester (2001-2003): quantum coherence, quantum chaos, and quantum phase transitions in coupled spin-boson systems.

Research Student
Jin Jun Liang, Manchester (2003): SU(N) Dicke models.

Current grants:
DFG Br 1528/4-1 (2 PhD positions)
EPSRC GR/R44690/01 (2002-2003, 1 Postdoc)
WE Heraeus grant No. 283 (workshop organisation, 09/2002)
Nuffield Foundation research student grant (2003).