+++ONLINE COLLOQUIUM+++ Quantum physics with macroscopic objects (MCQST-Kolloquium) (Prof. Eugene Polzik)

  • Datum: 18.05.2021
  • Uhrzeit: 14:30
  • Vortragende(r): Prof. Eugene Polzik
  • Niels Bohr Institute, University of Copenhagen & leader of QUANTOP – Quantum Optics Centre, Copenhagen, Denmark
Recent ideas and technological developments make possible generation of entangled and other non-classical states of truly macroscopic objects [1,2].

In this talk I will discuss experiments with macroscopic mechanical and atomic systems where measurements with sensitivity exceeding the standard quantum limits have been performed. Progress towards application of those ideas to kg-scale mirrors of gravitational wave detectors [3] will be reported. Generation of single quantum excitations of motion [4] and a collective atomic spin [5] will be discussed.

1. Nature, 547, 191 (2017).

2. Nature Physics (2020) 10.1038/s41567-020-1031-5.

3. Phys. Rev. Lett. 121, 031101 (2018).

4. Optica, 7(6), 718 (2020).

5. arXiv:2010.06875, to appear in Nature Comm.

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