993 citations · 8.8k across the 123 of their papers we have counts for
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Synchronization of Active Atomic Clocks via Quantum and Classical Channels
Alexander Roth, Klemens Hammerer
Superradiant lasers based on atomic ensembles exhibiting ultra-narrow optical transitions can emit light of unprecedented spectral purity and may serve as active atomic clocks. We…
Quantum back action evading measurement of motion in a negative mass reference frame
Christoffer B. Møller, Rodrigo A. Thomas, Georgios Vasilakis +6
Quantum mechanics dictates that a continuous measurement of the position of an object imposes a random back action perturbation on its momentum. This randomness translates with tim…
Open-system many-body dynamics through interferometric measurements and feedback
Jonas Lammers, Hendrik Weimer, Klemens Hammerer
Light-matter interfaces enable the generation of entangled states of light and matter which can be exploited to steer the quantum state of matter through measurement of light and f…
Generalized analysis of quantum noise and dynamic back-action in signal-recycled Michelson-type laser interferometers
Farid Ya. Khalili, Sergey P. Tarabrin, Roman Schnabel +1
We analyze the radiation pressure induced interaction of mirror motion and light fields in Michelson-type interferometers used for the detection of gravitational waves and for fund…
Optomechanical Multi-Mode Hamiltonian for Nanophotonic Waveguides
Hashem Zoubi, Klemens Hammerer
We develop a systematic method for deriving a quantum optical multi-mode Hamiltonian for the interaction of photons and phonons in nanophotonic dielectric materials by applying per…
Quantum Feedback Cooling of a Mechanical Oscillator Using Variational Measurements:Tweaking Heisenberg's Microscope
Hojat Habibi, Emil Zeuthen, Majid Ghanaatshoar +1
We revisit the problem of preparing a mechanical oscillator in the vicinity of its quantum-mechanical ground state by means of feedback cooling based on continuous optical detectio…