condensed-matter theory; quantum coherence; nanomechanics; ultracold atoms; mesoscopic superconductivity; ; noise and full counting statistics;
Strübi G, Belzig W, Choi M-S, Bruder C (2011), Interferometric and noise signatures of Majorana fermion edge states in transport experiments, in Physical Review Letters
, 107(13), 136403-136403.
Heule R, Bruder C, Burgarth D, Stojanovic VM (2011), Controlling qubit arrays with anisotropic XXZ Heisenberg interaction by acting on a single qubit, in EUROPEAN PHYSICAL JOURNAL D
, 63(1), 41-46.
Wang YD, Zhu XB, Bruder C (2011), Ideal quantum nondemolition measurement of a flux qubit at variable bias, in PHYSICAL REVIEW B
, 83(13), 134504-134504.
Rinck M, Bruder C (2011), Effects of a single fermion in a Bose Josephson junction, in PHYSICAL REVIEW A
, 83(2), 023608-023608.
Heule R, Bruder C, Burgarth D, Stojanovic VM (2010), Local quantum control of Heisenberg spin chains, in PHYSICAL REVIEW A
, 82(5), 052333-052333.
Aldana S, Wang Y-D, Bruder C (2010), Greenberger-Horne-Zeilinger generation protocol for N superconducting transmon qubits capacitively coupled to a quantum bus, in Physical Review B - Condensed Matter and Materials Physics
, 84(13), 134519-134519.
Stojanovic VM, Vukmirovic N, Bruder C (2010), Polaronic signatures and spectral properties of graphene antidot lattices, in PHYSICAL REVIEW B
, 82(16), 165410-165410.
Schmidt TL, Borkje K, Bruder C, Trauzettel B (2010), Detection of Qubit-Oscillator Entanglement in Nanoelectromechanical Systems, in PHYSICAL REVIEW LETTERS
, 104(17), 177205-177205.
Wang YD, Chesi S, Loss D, Bruder C (2010), One-step multiqubit Greenberger-Horne-Zeilinger state generation in a circuit QED system, in PHYSICAL REVIEW B
, 81(10), 104524-104524.
Vukmirovic Nenad, Stojanovic Vladimir M., Vanevic Mihajlo (2010), Electron-phonon coupling in graphene antidot lattices: An indication of polaronic behavior, in PHYSICAL REVIEW B
, 81(4), 041408-041408.
Schelter Joerg, Bohr Dan, Trauzettel Bjoern (2010), Interplay of the Aharonov-Bohm effect and Klein tunneling in graphene, in PHYSICAL REVIEW B
, 81(19), 195411-195411.
Schultz Maximilian G. (2010), Quantum transport through single-molecule junctions with orbital degeneracies, in PHYSICAL REVIEW B
, 82(15), 155408-155408.
We want to generalize current theoretical models of quantum point contact (QPC) position detectors in nanomechanical systems by considering a scattering theory of the QPC where tunneling is no longer assumed to be small. We plan to investigate the possibility of generating entanglement between two nanomechanical oscillators by simultaneous measurement of the position of the two oscillators by a single tunnel junction. We will study the perspectives of a suspended nanomechanical device as a detector of frequency-dependent quantum noise. We will study the dynamics of ultra-cold atoms in optical superlattices and the entanglement in such multipartite systems. We will also investigate the single-atom staircase for double-well lattices containing a mixture of bosonic and fermionic atoms. We will study the weak measurement theory of solid-state qubits. We will investigate the onset of the Josephson effect between two fermionic reservoirs (superconductors/superfluids) using a number-conserving theory. We will investigate current cross-correlations in a superconducting beam splitter if the superconductor is characterized by a non-trivial state.