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Prof. Dr. Fabian Hassler

Prof. Dr. Fabian Hassler
Institute for Quantum Information
Physikzentrum, Modulbau 2, room 110
Sommerfeldstrasse 26
52056 Aachen

Phone: +49-241-80 27012
Fax: +49-241-80 22188
E-Mail:  hassler(at)physik.rwth-aachen.de

 

Research Interests:

Mesoscopic physics

  • Majorana fermions for topological quantum computation applications
  • Superconducting qubits as quantum-information or measurement devices
  • Classification of topological insulator via transport properties
  • Shot noise and full counting statistics of charge transport

Atomic, molecular, and optical physics

  • Excitations in atomic strongly-correlated Fermi systems
  • Light emission from proximity-coupled semiconducting p-n junctions

Publications and Presentations:

Publications

B. van Heck, E. Cobanera, J. Ulrich, and F. Hassler,
"Thermal conductance as a probe of the non-local order parameter for a topological superconductor with gauge fluctuations",
Phys. Rev. B 89, 165416 (2014), (arXiv:1401.3539).

S. Spilla, F. Hassler, and J. Splettstoesser,
"Measurement and dephasing of a flux qubit due to heat currents",
New J. Phys. 16, 045020 (2014), (arXiv:1311.7561).

C. Ohm and F. Hassler,
"Majorana fermions coupled to electromagnetic radiation",
New J. Phys. 16, 015009 (2014), (arXiv:1309.7314).

F. Konschelle and F. Hassler,
"Effects of non-equilibrium noise on a quantum memory encoded in Majorana zero modes",
Phys. Rev. B 88, 075431 (2013), (arXiv:1306.2519).

D. Pekker, C.-Y. Hou, D. L. Bergman, S. Goldberg, İ. Adagideli, and F. Hassler,
"Suppression of 2π phase-slip due to hidden zero modes in one dimensional topological superconductors",
Phys. Rev. B 87, 064506 (2013), (arXiv:1209.2161).

F. Hassler and D. Schuricht,
"Strongly interacting Majorana modes in an array of Josephson junctions",
New J. Phys. 14, 125018 (2012), (arXiv:1206.2134).

F. Domínguez, F. Hassler, and G. Platero,
"Dynamical detection of Majorana fermions in current-biased nanowires",
Phys. Rev. B 86, 140503(R) (2012), (arXiv:1202.0642).

B. M. Terhal, F. Hassler, and D. P. DiVincenzo,
"From Majorana Fermions to Topological Order",
Phys. Rev. Lett. 108, 260504 (2012), (arXiv:1201.3757).

C. Padurariu, F. Hassler, and Yu. V. Nazarov,
"Statistics of radiation at Josephson parametric resonance",
Phys. Rev. B 86, 054514 (2012), (arXiv:1112.4159).

B. van Heck, A. R. Akhmerov, F. Hassler, M. Burrello, and C. W. J. Beenakker,
"Coulomb-assisted braiding of Majorana fermions in a Josephson junction array",
New J. Phys. 14, 035019 (2012), (arXiv:1111.6001).

I. C. Fulga, F. Hassler, A. R. Akhmerov, and C. W. J. Beenakker,
"Topological quantum number and critical exponent from conductance fluctuations at the quantum Hall plateau transition",
Phys. Rev. B 84, 245447 (2011), (arXiv:1110.4280).

B. van Heck, F. Hassler, A. R. Akhmerov, and C. W. J. Beenakker,
"Coulomb stability of the 4π-periodic Josephson effect of Majorana fermions",
Phys. Rev. B 84, 180502(R) (2011), (arXiv:1108.1095).

I. C. Fulga, F. Hassler, and A. R. Akhmerov,
"Scattering theory of topological insulators and superconductors",
Phys. Rev. B 85, 165409 (2012), (arXiv:1106.6351).

F. Hassler, A. R. Akhmerov, and C. W. J. Beenakker,
"Top-transmon: hybrid superconducting qubit for parity-protected quantum computation",
New J. Phys. 13, 095004 (2011), (arXiv:1105.0315).

I. C. Fulga, F. Hassler, A. R. Akhmerov, and C. W. J. Beenakker,
"Scattering formula for the topological quantum number of a disordered multi-mode wire",
Phys. Rev. B 83, 155429 (2011), (arXiv:1101.1749).

C.-Y. Hou, F. Hassler, A. R. Akhmerov, and J. Nilsson,
"Probing Majorana edge states with a flux qubit",
Phys. Rev. B 84, 054538 (2011), (arXiv:1101.0604).

F. Godschalk, F. Hassler, and Yu. V. Nazarov,
"Proposal for an optical laser producing light at half the Josephson frequency",
Phys. Rev. Lett. 107, 073901 (2011), (arXiv:1010.5960).

A. R. Akhmerov, J. P. Dahlhaus, F. Hassler, M. Wimmer, and C. W. J. Beenakker,
"Quantized conductance at the Majorana phase transition in a disordered superconducting wire",
Phys. Rev. Lett. 106, 057001 (2011), (arXiv:1009.5542).

B. Küng, S. Gustavsson, T. Choi, I. Shorubalko, O. Pfäffli, F. Hassler, G. Blatter, M. Reinwald, W. Wegscheider, S. Schön, T. Ihn, and and K. Ensslin,
"Measurement Back-Action in Quantum Point-Contact Charge Sensing",
Entropy 12, 1721 (2010), (pdf).

F. Hassler, A. R. Akhmerov, and C. W. J. Beenakker,
"Flat-lens focusing of electrons on the surface of a topological insulator",
Phys. Rev. B 82, 125423 (2010), (arXiv:1005.5093).

F. Hassler, A. R. Akhmerov, C.-Y. Hou, and C. W. J. Beenakker,
"Anyonic interferometry without anyons: How a flux qubit can read out a topological qubit",
New J. Phys. 12, 125002 (2010), (arXiv:1005.3423).

F. Hassler, A. Rüegg, M. Sigrist, and G. Blatter,
"Dynamical Unbinding Transition in a Periodically Driven Mott Insulator",
Phys. Rev. Lett. 104, 220402 (2010), (arXiv:1002.3085).

I. C. Fulga, F. Hassler, and C. W. J. Beenakker,
"Nonzero temperature effects on antibunched photons emitted by a quantum point contact out of equilibrium",
Phys. Rev. B 81, 115331 (2010), (arXiv:1001.4389).

F. Hassler, G. B. Lesovik, and G. Blatter,
"Influence of a Random Telegraph Process on the Transport through a Point Contact",
Eur. Phys. J. B 83, 349 (2011), (arXiv:1001.0578).

F. Hassler, Yu. V. Nazarov, and L. P. Kouwenhoven,
"Quantum manipulation in a Josephson LED",
Nanotechnology 21, 274004 (2010), (arXiv:0911.5100).

B. Küng, S. Gustavsson, T. Choi, I. Shorubalko, T. Ihn, S. Schön, F. Hassler, G. Blatter, and K. Ensslin,
"Noise-induced spectral shift measured in a Double Quantum Dot",
Phys. Rev. B 80, 115315 (2009), (arXiv:0904.3656).

F. Hassler, B. Küng, G. B. Lesovik, and G. Blatter,
"Single-Particle Excitations Generated by Voltage Pulses",
AIP Conf. Proc. 1134, 113 (2009), (arXiv:1110.0441).

F. Hassler and S. D. Huber,
"Coherent pumping of a Mott insulator: Fermi golden rule versus Rabi oscillations",
Phys. Rev. A 79, 021607(R) (2009), (arXiv:0812.0532).

F. Hassler, M. V. Suslov, G. M. Graf, M. V. Lebedev, G. B. Lesovik, and G. Blatter,
"Wave-packet Formalism of Full Counting Statistics",
Phys. Rev. B 78, 165330 (2008), (arXiv:0802.0143).

F. Hassler, G. B. Lesovik, and G. Blatter,
"Effects of Exchange Symmetry on Full Counting Statistics",
Phys. Rev. Lett. 99, 076804 (2007), (cond-mat/0612693).

G. B. Lesovik, F. Hassler, and G. Blatter,
"Using Qubits to Measure Fidelity in Mesoscopic Systems",
Phys. Rev. Lett. 96, 106801 (2006), (cond-mat/0507200).

 

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