Niels Lörch


Department of Physics
University of Basel
Klingelbergstrasse 82
CH-4056 Basel, Switzerland

email:view address

tel: +41612673755

Research Interests

Quantum Optics, Optomechanics, Trapped Ions, Synchronization

Short CV

2005-2010: Diplom in Physics at University of Heidelberg. Thesis Advisors: Dr. Sandro Wimberger and Prof. Berge Englert (CQT Singapore)
2011-2015: PhD in Physics under supervision of Prof. Klemens Hammerer at Leibniz University and Albert Einstein Institute in Hannover
2015-present: Postdoc in the group of Prof. Christoph Bruder at University of Basel

Nanophysics Lecture

Lecture Notes 2
Exercise 2
Lecture Notes 3
Exercise 3


Show all abstracts.

1.  Interaction-induced time-symmetry breaking in driven quantum oscillators
Mark I. Dykman, Christoph Bruder, Niels Lörch, and Yaxing Zhang.
arxiv:1805.12545 (2018)

2.  Unravelling nonclassicality in the optomechanical instability
Martin Koppenhöfer, Christoph Bruder, and Niels Lörch.
arxiv:1805.06193 (2018)

3.  Optimal work extraction from quantum states by photo-assisted Cooper pair tunneling
Niels Lörch, Christoph Bruder, Nicolas Brunner, and Patrick P. Hofer.
arxiv:1802.10572 (2018)

4.  Quantum effects in amplitude death of coupled anharmonic self-oscillators
Ehud Amitai, Martin Koppenhöfer, Niels Lörch, and Christoph Bruder.
Phys. Rev. E 97, 052203 (2018)

5.  Quantum synchronization blockade: Energy quantization hinders synchronization of identical oscillators
N. Lörch, S. Nigg, A. Nunnenkamp, R. Tiwari, and C. Bruder.
Phys. Rev. Lett. 118, 243602 (2017)

6.  Synchronization of an optomechanical system to an external drive
E. Amitai, N. Lörch, A. Nunnenkamp, S. Walter, and C. Bruder.
Phys. Rev. A 95, 053858 (2017)

7.  Robust quantum optimizer with full connectivity
S. Nigg, N. Lörch, and R. Tiwari.
Science Advances, Vol. 3, no. 4 (2017)

8.  Optomechanical Self-Oscillations in an Anharmonic Potential: Engineering a Nonclassical Steady State
M. Grimm, C. Bruder, and N. Lörch.
J. Opt. 18, 094004 (2016)

9.  Genuine quantum signatures in synchronization of anharmonic self-oscillators
N. Lörch, E. Amitai, A. Nunnenkamp, and C. Bruder.
Phys. Rev. Lett. 117, 073601 (2016)

10.  Quantum Algorithmic Readout in Multi-Ion Clocks
M. Schulte, N. Lörch, I.D. Leroux, P.O. Schmidt, and K. Hammerer.
Phys. Rev. Lett. 116, 013002 (2016)

11.  Sub-Poissonian phonon lasing in three-mode optomechanics
N. Lörch and K. Hammerer.
Phys. Rev. A 91, 061803(R) (2015)

12.  Laser Theory for Optomechanics: Limit Cycles in the Quantum Regime
N. Lörch, J. Qian, A. Clerk, F. Marquardt, and K. Hammerer.
Phys. Rev. X 4, 011015 (2014)

13.  Precision spectroscopy by photon-recoil signal amplification
Y. Wan, F. Gebert, J.B. Wuebbena, N. Scharnhorst, S. Amairi, I.D. Leroux, B. Hemmerling, N. Lörch, K. Hammerer, and P.O. Schmidt.
Nature Communications 5, 3096 (2014)

14.  Wave-function-renormalization effects in resonantly enhanced tunneling
N. Lörch, F.V. Pepe, H. Lignier, D. Ciampini, R. Mannella, O. Morsch, E. Arimondo, P. Facchi, G. Florio, S. Pascazio, and S. Wimberger.
Phys. Rev. A 85, 053602 (2012)

15.  Long-lived qubit from three spin-1/2 atoms
R. Han, N. Lörch, J. Suzuki, and B.-G. Englert.
Phys. Rev. A 84, 012322 (2011)

16.  Time-resolved measurement of Landau-Zener tunneling in different bases
G. Tayebirad, A. Zenesini, D. Ciampini, R. Mannella, O. Morsch, E. Arimondo, N. Lörch, and S. Wimberger.
Phys. Rev. A 82, 013633 (2010)