Simone Felicetti
@simonefelicetti.bsky.social
Quantum physicists; Senior researcher at Institute for Complex Systems CNR-ISC and Sapienza University of Rome
https://www.isc.cnr.it/staff-members/simone-felicetti/
https://www.isc.cnr.it/staff-members/simone-felicetti/
Tutorial on Critical Quantum Sensing, an approach that exploits quantum phase transitions both as a conceptual framework and as practical tools in sensing and metrology.
We provide a pedagogical introduction to key concepts and a detailed overview of prominent strategies.
arxiv.org/abs/2510.02035
We provide a pedagogical introduction to key concepts and a detailed overview of prominent strategies.
arxiv.org/abs/2510.02035
Critical Quantum Sensing: a tutorial on parameter estimation near quantum phase transitions
Quantum phenomena offer the possibility of measuring physical quantities with precision beyond classical limits. However, current progress is constrained by scalability, environmental noise, and chall...
arxiv.org
October 10, 2025 at 8:29 AM
Tutorial on Critical Quantum Sensing, an approach that exploits quantum phase transitions both as a conceptual framework and as practical tools in sensing and metrology.
We provide a pedagogical introduction to key concepts and a detailed overview of prominent strategies.
arxiv.org/abs/2510.02035
We provide a pedagogical introduction to key concepts and a detailed overview of prominent strategies.
arxiv.org/abs/2510.02035
Reposted by Simone Felicetti
STOP STARVING GAZA NOW: The people of Gaza have called on us to act. We are joining the call to people of conscience to stand against the U.S.-backed Israeli-manufactured famine in Gaza. People of all age groups are being gruesomely starved, with deaths due to malnutrition on the rise every day.
July 23, 2025 at 5:02 PM
STOP STARVING GAZA NOW: The people of Gaza have called on us to act. We are joining the call to people of conscience to stand against the U.S.-backed Israeli-manufactured famine in Gaza. People of all age groups are being gruesomely starved, with deaths due to malnutrition on the rise every day.
Extracting correlation functions is often challenging, both experimentally and theoretically. In this work, we leverage recent advances in quantum metrology to derive general lower bounds on correlation times that are straightforward to compute and experimentally accessible arxiv.org/abs/2507.08661
Time correlations from steady-state expectation values
Recovering properties of correlation functions is typically challenging. On one hand, experimentally, it requires measurements with a temporal resolution finer than the system's dynamics. On the other...
arxiv.org
July 14, 2025 at 10:44 AM
Extracting correlation functions is often challenging, both experimentally and theoretically. In this work, we leverage recent advances in quantum metrology to derive general lower bounds on correlation times that are straightforward to compute and experimentally accessible arxiv.org/abs/2507.08661
Reposted by Simone Felicetti
New: We have the list of ~190 Harvard NSF grant terminations from internal agency sources. About $148 million intended funds killed. Over 1/3 are from the MPS directorate—roughly 75 math and physics grants.
May 15, 2025 at 7:07 PM
New: We have the list of ~190 Harvard NSF grant terminations from internal agency sources. About $148 million intended funds killed. Over 1/3 are from the MPS directorate—roughly 75 math and physics grants.
Reposted by Simone Felicetti
Excited to share that our latest work is now published in
PRX quantum! We explore quantum sensing beyond linear scaling in superconducting circuits by leveraging critical phenomena. Check it out: journals.aps.org/prxquantum/a...
PRX quantum! We explore quantum sensing beyond linear scaling in superconducting circuits by leveraging critical phenomena. Check it out: journals.aps.org/prxquantum/a...
April 1, 2025 at 5:46 PM
Excited to share that our latest work is now published in
PRX quantum! We explore quantum sensing beyond linear scaling in superconducting circuits by leveraging critical phenomena. Check it out: journals.aps.org/prxquantum/a...
PRX quantum! We explore quantum sensing beyond linear scaling in superconducting circuits by leveraging critical phenomena. Check it out: journals.aps.org/prxquantum/a...
New preprint: We show that, under parametric pumping, symmetry breaking can lead to a topological phase purely driven by nonlinear interactions -- a new mechanism for realizing topology in quantum resonator lattices
arxiv.org/abs/2503.11928
arxiv.org/abs/2503.11928
Nonlinearity-driven Topology via Spontaneous Symmetry Breaking
Topology and nonlinearity are deeply connected. However, whether topological effects can arise solely from the structure of nonlinear interaction terms, and the nature of the resulting topological pha...
arxiv.org
March 19, 2025 at 11:16 AM
New preprint: We show that, under parametric pumping, symmetry breaking can lead to a topological phase purely driven by nonlinear interactions -- a new mechanism for realizing topology in quantum resonator lattices
arxiv.org/abs/2503.11928
arxiv.org/abs/2503.11928
Excited to share our latest work, where we observe 1st and 2nd order dissipative phase transitions using a superconducting Kerr resonator with two-photon drive. This work deepens our understanding of nonequilibrium quantum systems and paves the way for quantum sensing application rdcu.be/ecUOu
Observation of first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator
Nature Communications - Dissipative quantum phase transitions in open quantum systems have been extensively studied, but experiments have been mostly limited to first-order transitions. Here, the...
rdcu.be
March 10, 2025 at 2:45 PM
Excited to share our latest work, where we observe 1st and 2nd order dissipative phase transitions using a superconducting Kerr resonator with two-photon drive. This work deepens our understanding of nonequilibrium quantum systems and paves the way for quantum sensing application rdcu.be/ecUOu
Published on Communications Physics, our latest work on Critical Quantum Sensing. We derive analytical solutions for the low-energy spectrum and metrological power of an unconventional quantum many-body system, composed of an array of locally critical Kerr resonators:
www.nature.com/articles/s42...
www.nature.com/articles/s42...
Collective quantum enhancement in critical quantum sensing - Communications Physics
Critical quantum sensing is now a well-established approach, based on the exploitation of quantum phase transitions. This work shows that a collective quantum advantage can be achieved when using coup...
www.nature.com
February 25, 2025 at 6:10 PM
Published on Communications Physics, our latest work on Critical Quantum Sensing. We derive analytical solutions for the low-energy spectrum and metrological power of an unconventional quantum many-body system, composed of an array of locally critical Kerr resonators:
www.nature.com/articles/s42...
www.nature.com/articles/s42...
New preprint with @rdicandia.bsky.social arxiv.org/abs/2502.10253
Digital Teleportation is based on measurement+feed-forward. In analog quantum teleportation these steps are replaced with squeezing+decoding. We identify a relevant parameter regime in which analog protocols are the optimal choice
Digital Teleportation is based on measurement+feed-forward. In analog quantum teleportation these steps are replaced with squeezing+decoding. We identify a relevant parameter regime in which analog protocols are the optimal choice
Analog Quantum Teleportation
Digital teleportation protocols make use of entanglement, local measurements and a classical communication channel to transfer quantum states between remote parties. We consider analog teleportation p...
arxiv.org
February 18, 2025 at 5:32 PM
New preprint with @rdicandia.bsky.social arxiv.org/abs/2502.10253
Digital Teleportation is based on measurement+feed-forward. In analog quantum teleportation these steps are replaced with squeezing+decoding. We identify a relevant parameter regime in which analog protocols are the optimal choice
Digital Teleportation is based on measurement+feed-forward. In analog quantum teleportation these steps are replaced with squeezing+decoding. We identify a relevant parameter regime in which analog protocols are the optimal choice
Reposted by Simone Felicetti
Two senior postdoc positions are available within experimental quantum optics at the Niels Bohr Institute, University of Copenhagen
#QuantumOptics
www.quantiki.org/position/sen...
#QuantumOptics
www.quantiki.org/position/sen...
Senior postdoc positions in Experimental Quantum Optics in Copenhagen | Quantiki
www.quantiki.org
January 30, 2025 at 12:33 PM
Two senior postdoc positions are available within experimental quantum optics at the Niels Bohr Institute, University of Copenhagen
#QuantumOptics
www.quantiki.org/position/sen...
#QuantumOptics
www.quantiki.org/position/sen...
Reposted by Simone Felicetti
"Quantum Communication and Sensing in the Microwave Regime" - You still have a couple of months to submit a manuscript to our focus collection on Communications Physics (Nature/Springer)
www.nature.com/collections/...
www.nature.com/collections/...
How to submit | Quantum Communication and Sensing in the Microwave Regime
This Focus Collection aims to bring together cutting-edge experimental and theoretical developments in the rapidly evolving field of microwave quantum communication and sensing.
www.nature.com
January 15, 2025 at 3:10 PM
"Quantum Communication and Sensing in the Microwave Regime" - You still have a couple of months to submit a manuscript to our focus collection on Communications Physics (Nature/Springer)
www.nature.com/collections/...
www.nature.com/collections/...
Reposted by Simone Felicetti
The Condensed Matter and quantum Information theory group at Scuola Normale Superiore is inviting to participate in Workshop on Criticality and Continuous Measurements in Quantum Sensing.
#QuantumSensing
quantiki.org/conference/w...
#QuantumSensing
quantiki.org/conference/w...
Workshop on Criticality and Continuous Measurements in Quantum Sensing: From Theory to Experiments (Pisa, Italy 24-27 March 2025) | Quantiki
quantiki.org
January 9, 2025 at 5:04 PM
The Condensed Matter and quantum Information theory group at Scuola Normale Superiore is inviting to participate in Workshop on Criticality and Continuous Measurements in Quantum Sensing.
#QuantumSensing
quantiki.org/conference/w...
#QuantumSensing
quantiki.org/conference/w...
Reposted by Simone Felicetti
Workshop announcement!
“Criticality and Continuous Measurements in Quantum Sensing: from Theory to Experiments”
March 24-27, 2025, in Pisa, Italy, at the Scuola Normale Superiore
indico.sns.it/event/81/
“Criticality and Continuous Measurements in Quantum Sensing: from Theory to Experiments”
March 24-27, 2025, in Pisa, Italy, at the Scuola Normale Superiore
indico.sns.it/event/81/
Criticality and Continuous Measurements in Quantum Sensing: From Theory to Experiments
Critical quantum sensing is by now a well-established approach, based on the exploitation of the extreme sensitivity developed in proximity of phase transitions. Numerous theoretical studies and recen...
indico.sns.it
January 9, 2025 at 3:45 PM
Workshop announcement!
“Criticality and Continuous Measurements in Quantum Sensing: from Theory to Experiments”
March 24-27, 2025, in Pisa, Italy, at the Scuola Normale Superiore
indico.sns.it/event/81/
“Criticality and Continuous Measurements in Quantum Sensing: from Theory to Experiments”
March 24-27, 2025, in Pisa, Italy, at the Scuola Normale Superiore
indico.sns.it/event/81/