Senior Scientist · University of Vienna
Mario A.
Ciampini
I trap nanoparticles with light and make them behave quantum mechanically, using them to probe where quantum physics, information and thermodynamics meet.
About me
I am an experimental physicist and Senior Scientist in the group of Markus Aspelmeyer at the Faculty of Physics of the University of Vienna.
In the lab, I trap glass nanoparticles in tightly focused laser beams in ultra-high vacuum and try to make them behave quantum mechanically. I shape their optical potential in space and time, control their motion with real-time feedback, and use them as a clean test bed for a question I find fascinating: what does it cost, physically, to process information?
I trained in quantum optics at Sapienza University of Rome, where I did my PhD with Paolo Mataloni on hyperentangled photons and multiqubit quantum information on integrated photonic chips. I moved to Vienna in 2018, first as a postdoc with Nikolai Kiesel, then as an FWF Lise Meitner Fellow, and since 2023 as a Senior Scientist.
Beyond research, I enjoy teaching, mentoring students and bringing physics to the public, from school experiments with cheap optics to the Long Night of Research.
Research themes
Quantum control of levitated nanoparticles
Shaping optical potentials in space and time to push a levitated nanoparticle into the quantum regime.
02Thermodynamics of information
Memories, erasure and entropy production, tested on a single particle beyond the Landauer bound.
03Interacting levitated systems & feedback
Coupled particles, ultra-clean loading into vacuum, and real-time FPGA feedback control.
04Photonic quantum information
Hyperentangled and cluster states of photons, quantum metrology and quantum channels.
Selected publications
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2025
Erasure of a nonequilibrium memory beyond Landauer's bound using levitated optomechanics with spatio-temporal optical control
Physical Review Research 7, 043321 (2025)
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2024
Fast quantum interference of a nanoparticle via optical potential control
Proceedings of the National Academy of Sciences 121, e2306953121 (2024)
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2022
Tunable light-induced dipole-dipole interaction between optically levitated nanoparticles
Science 377, 987 (2022)
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2017
Optimal measurements for simultaneous quantum estimation of multiple phases
Physical Review Letters 119, 130504 (2017) Editors' Suggestion