975 citations · 1.5k across the 12 of their papers we have counts for
12 papers
Detection of a semitransparent object with no exchange of quanta
Vedran Vujnović, Nenad Kralj, Marin Karuza
In this paper, we theoretically analyze the optimization of a Fabry-Pérot cavity for the purpose of detecting partially absorbing objects placed inside without photon exchange. Uti…
A Long-lived and Efficient Optomechanical Memory for Light
Mads Bjerregaard Kristensen, Nenad Kralj, Eric Langman +1
We demonstrate a memory for light based on optomechanically induced transparency. We achieve a long storage time by leveraging the ultra-low dissipation of a soft-clamped mechanica…
Laser cooling a membrane-in-the-middle system close to the quantum ground state from room temperature
Sampo A. Saarinen, Nenad Kralj, Eric C. Langman +2
Many protocols in quantum science and technology require initializing a system in a pure quantum state. In the context of the motional state of massive resonators, this enables stu…
Measuring the knot of non-Hermitian degeneracies and non-commuting braids
Yogesh S. S. Patil, Judith Höller, Parker A. Henry +6
Any system of coupled oscillators may be characterized by its spectrum of resonance frequencies (or eigenfrequencies), which can be tuned by varying the system's parameters. The re…
Improved Search for Solar Chameleons with a GridPix Detector at CAST
V. Anastassopoulos, S. Aune, K. Barth +66
We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200…
Cavity optomechanics with feedback--controlled in--loop light
Stefano Zippilli, Nenad Kralj, Massimiliano Rossi +2
It has recently been shown [Rossi et al., Phys. Rev. Lett. 119, 123603 (2017); ibid. 120, 073601 (2018)] that feedback--controlled in--loop light can be used to enhance the efficie…
Normal--mode splitting in a weakly coupled optomechanical system
Massimiliano Rossi, Nenad Kralj, Stefano Zippilli +6
Normal--mode splitting is the most evident signature of strong coupling between two interacting subsystems. It occurs when two subsystems exchange energy between themselves faster…
Enhancement of three-mode optomechanical interaction by feedback-controlled light
Nenad Kralj, Massimiliano Rossi, Stefano Zippilli +6
We realise a feedback-controlled optical Fabry-Perot cavity in which the transmitted cavity output is used to modulate the input amplitude fluctuations. The resulting phase-depende…
New CAST Limit on the Axion-Photon Interaction
CAST collaboration, V. Anastassopoulos, S. Aune +64
During 2003--2015, the CERN Axion Solar Telescope (CAST) has searched for conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward…
Enhancing sideband cooling by feedback--controlled light
Massimiliano Rossi, Nenad Kralj, Stefano Zippilli +6
We realise a phase-sensitive closed-loop control scheme to engineer the fluctuations of the pump field which drives an optomechanical system, and show that the corresponding coolin…
Microfabrication of large area high-stress silicon nitride membranes for optomechanical devices
E. Serra, M. Bawaj, A. Borrielli +16
In view of the integration of membrane resonators with more complex MEMS structures, we developed a general fabrication procedure for circular shape SiN membranes using Deep Re…
Implementation of the finite amplitude method for the relativistic quasiparticle random-phase approximation
Tamara Niksic, Nenad Kralj, Tea Tutis +2
A new implementation of the finite amplitude method (FAM) for the solution of the relativistic quasiparticle random-phase approximation (RQRPA) is presented, based on the relativis…