Welcome to the
NANOPHOTONICS GROUP!
We are located at the Department of Physics,
Sapienza University of Rome (Italy).
We do interesting stuff with sources of non-classical
light based on semiconductor nanostructures.
If you are interested, see below...
News and Highlights
June 2023
Rachele Bracchi got the "Laurea" degree!
Many congratulations Rachele!
Rachele Bracchi got the "Laurea" degree!
Many congratulations Rachele!
April 2023
We are very happy to announce the 2nd International Summer school on: "Quantum technology from fundamental science to real word applications" which will be held at the Ettore Majorana foundation in Erice (Italy) on 02/10/2023-7/10/2023
More information can be found at this link: click here!
We are very happy to announce the 2nd International Summer school on: "Quantum technology from fundamental science to real word applications" which will be held at the Ettore Majorana foundation in Erice (Italy) on 02/10/2023-7/10/2023
More information can be found at this link: click here!
April 2023
A few years have passed since the first PL spectrum in Rome...
but we are now very happy that Michele continues his journey
in our group as RTDA researcher!
Many congratulations Michele for thewell-deserved achievement!
February 2023
Eva Schöll and Lukas Hanschke from the University
of Paderborn join the Minions for a few weeks!
Welcome Eva and Lukas!
February 2023
Hyperfine interaction and degree of entanglement: Yes, No,... Yes! but you need the right quantum dots to see it experimentally!
We are very happy to announce:
"Hyperfine-interaction limits polarization entanglement of photons from semiconductor quantum dots"
see ArXiv:2302.05983
Many congratulations Christian!
January 2023
We have three new Doctors!
Many many congratulations Julia, Matteo and Alessandro.
You did a fantastic work in the last three years!
January 2023
How to control the brightness of quantum emitters in 2D materials? Well, Strain!
After countless hours in the lab, we are very happy to announce:
"Strain-induced dynamic control over the population of quantum emitters in two-dimensional materials"
see ArXiv:2301.10273
Many congratulations Matteo!
December 2022
Mattia Beccaceci and Federico Trezzini
got the "Laurea" degree!
Many congratulations Mattia and Federico!
December 2022
When the lifetime gets very short, be careful on how you drive your Quantum Dot...
We are very happy to announce:
"Signatures of the optical Stark effect on entangled photon pairs from resonantly-pumped quantum dots"
see ArXiv:2212.07087
Many congratulations Francesco!
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December 2022
Javier and his team from Oviedo visited us for a few days!
It was very nice to work again with an old friend and his colleagues!
Hope to see you all in Rome soon!
December 2022
Javier and his team from Oviedo visited us for a few days!
It was very nice to work again with an old friend and his colleagues!
Hope to see you all in Rome soon!
December 2022
After several attempts, we have finally managed to produce an ultra-bright and tuneable source of entangled photons!
We are very happy to announce:
"A source of entangled photons based on a cavity-enhanced and strain-tuned GaAs quantum dot"
see ArXiv:2212.12506
Many congratulations to All, especially to Michele and Tobias for the great work!
October 2022
Our point of view on quantum communication,
explained to the general public (only in Italian).
We are very happy to announce:
"Comunicare nell'era dei quanti"
see Asimmetrie 33 (2022)
September 2022
Multi-state quantum discrimination, the first time with quantum dot light!
We are very happy to announce:
"Experimental Multi-state Quantum Discrimination in the Frequency Fomain with Quantum Dot light"
see ArXiv:2209.08324
Many congratulations Alessandro!
May 2022
Serge Haroche visited our labs....
an honor for us
Serge Haroche visited our labs....
an honor for us
Spring 2022
Nikola Horová (Palacký University Olomouc
) and Hêlio Huet (Centre de Nanosciences et de Nanotechnologies) join the group for their internship.
Welcome Nikola and Hêlio!
April 2022
Is it multi-pair free or not? Yes it is!
After countless hours of measurements and discussions, we are very happy to announce:
"Multipair-free source of entangled photons in the solid state"
see Phys. Rev. B 106. L241402 (2022)
Many congratulations Julia!
March 2022
The Physics Department at Sapienza is participating in the QUARMEN (QUAntum Research Master-level Education Network) Erasmus Mundus Joint Master centered on Quantum Science and Technology.
For more info, click here
The Physics Department at Sapienza is participating in the QUARMEN (QUAntum Research Master-level Education Network) Erasmus Mundus Joint Master centered on Quantum Science and Technology.
For more info, click here
March 2022
Our group is participating to the
Italian Quantum Weeks
from 31/03/2022 to 08/04/2022
For more information,
please click here and here
Our group is participating to the
Italian Quantum Weeks
from 31/03/2022 to 08/04/2022
For more information,
please click here and here
December 2021
Our work on
"Quantum dot technology for quantum repeaters: from entangled photon generation toward the integration with quantum memories"
finally appeared in Materials for Quantum Technology
Mater. Quantum Technol. 1, 043001 (2021)
Many congratulations Julia!
Our work on
"Quantum dot technology for quantum repeaters: from entangled photon generation toward the integration with quantum memories"
finally appeared in Materials for Quantum Technology
Mater. Quantum Technol. 1, 043001 (2021)
Many congratulations Julia!
November 2021
We have a "new" member in the group:
Francesco Basso Basset soon becomes RTDA researcher!
Many congratulations to Francesco for the well-deserved achievement and for the great work done over the last few years!
We have a "new" member in the group:
Francesco Basso Basset soon becomes RTDA researcher!
Many congratulations to Francesco for the well-deserved achievement and for the great work done over the last few years!
September 2021
I could not resist! but I think we need a break
Many thanks Frascesco Salusti for the great dinner (with an oustanding view!)
I could not resist! but I think we need a break
Many thanks Frascesco Salusti for the great dinner (with an oustanding view!)
July 2021 - November 2021
Gabriele Lovicu and Claudio Pardo
got the "Laurea" degree!
Many congratulations Gabriele and Claudio!
Gabriele Lovicu and Claudio Pardo
got the "Laurea" degree!
Many congratulations Gabriele and Claudio!
September 2021
We really like working outside the lab, hopefully not anymore during night ;)
"Quantum violation of local causality in urban network with hybrid photonic technologies"
see Optica 9, 572 (2022)
Many congratulations to all!
We really like working outside the lab, hopefully not anymore during night ;)
"Quantum violation of local causality in urban network with hybrid photonic technologies"
see Optica 9, 572 (2022)
Many congratulations to all!
March 2021
CLAUDIO PARDO, A NEW MASTER STUDENT, JOINS THE MINIONS!
Claudio will help us doing "Quantum" within the Campus of Sapienza
Welcome Claudio!
March 2021
Our joint work with Sciarrino's group:
"Quantum key distribution with entangled photons generated on demand by a quantum dot"
has just appeared in Science Advances
Science Advances 7, eabe637 (2021)
Many congratulations to all!
The work has been also highlighted in:
Sapienza (in italian)
see the Youtube video!
March 2021
Our perspective on
"Quantum dots as potential sources of strongly entangled photons: Perspectives and challenges for applications in quantum networks"
has just appeared in Applied Physics Letters
Appl. Phys. Lett. 118, 100502 (2021)
The work has been also selected as Editors' suggestion... many congratulations Christian!
January 2021
Even if they are not perfect, they work!
Our work on
"Quantum teleportation with imperfect quantum dots"
has just appeared in NPJ Quantum Information
npj Quantum Information 7 (2021)
Many congratulations Francesco B. and Francesco S.!
January 2021
Even if they are not perfect, they work!
Our work on
"Quantum teleportation with imperfect quantum dots"
has just appeared in NPJ Quantum Information
npj Quantum Information 7 (2021)
Many congratulations Francesco B. and Francesco S.!
March - December 2020 - ...
It is a very difficult period (also) for experimental physicists...
September 2020
NEW MINIONS JOIN THE GROUP
Federico Trezzini (master student), and Gabriele Lovicu (master student) join the Minions!
Welcome Federico and Gabriele!
July 2020
Doing experiments outside the lab is not so easy... but thanks to a collaboration with the Quantum Lab of Prof. F. Sciarrino we are very happy to announce:
"Quantum key distribution with entangled photons generated on-demand by a quantum dot"
see arXiv:2007.12727
Many congratulations to all!
A group trip outside the lab
Discussing about science in the forest.... with a unforgettable pizza!
Thanks Michele for the invitation!
January 2020
Francesco Salusti gets the "Laurea" degree
Many congratulations Francesco!
December 2019
THE MINIONS 2019 - GROUP PICTURE
From left to right:
Davide Tedeschi, Francesco Salusti, Michele Rota, Julia Neuwirth, Matteo Savaresi, Rinaldo Trotta, Francesco Basso Basset, Tobias Krieger, Emanuele Roccia, Giuseppe Ronco
August - November 2019
NEW MINIONS JOIN THE GROUP
Julia Neuwirth (PhD student), Giuseppe Ronco (master student), and Tobias Krieger (Erasmus student) join the Minions!
Welcome Julia, Giuseppe, and Tobias!
NEW MINIONS JOIN THE GROUP
Julia Neuwirth (PhD student), Giuseppe Ronco (master student), and Tobias Krieger (Erasmus student) join the Minions!
Welcome Julia, Giuseppe, and Tobias!
October 2019
Our work on
"Entanglement Swapping with Photons Generated on Demand by a Quantum Dot"
finally appeared in Physical Review Letters
Phys. Rev. Lett. 123, 160501 (2019)
Many congratulations Francesco, Michele, Christian and Davide!
Our work on
"Entanglement Swapping with Photons Generated on Demand by a Quantum Dot"
finally appeared in Physical Review Letters
Phys. Rev. Lett. 123, 160501 (2019)
Many congratulations Francesco, Michele, Christian and Davide!
October 2019
Matteo Savaresi gets the "Laurea" degree and will continue his journey in our group as PhD student
Many congratulations Matteo!
September 2019
Our work on
"Strain-tunable Single Photon Sources in WSe2 Monolayers"
has just appeared in Nano Letters
Nano Lett. 19, 6931 (2019)
Many congratulations Davide and Matteo!
August 2019
Discussing a great work on strain-tuning of QDs..
News & Views
"One, Two, Three, Many"
R. Trotta, Nature Materials 18, 916 (2019)
Article
"Scalable in operando strain tuning in nanophotonic waveguides enabling three-quantum-dot superradiance"
J. Q. Grim et al., Nature Materials 18, 963 (2019)
For more info, see
https://www.nature.com/articles/s41563-019-0466-5
Discussing a great work on strain-tuning of QDs..
News & Views
"One, Two, Three, Many"
R. Trotta, Nature Materials 18, 916 (2019)
Article
"Scalable in operando strain tuning in nanophotonic waveguides enabling three-quantum-dot superradiance"
J. Q. Grim et al., Nature Materials 18, 963 (2019)
For more info, see
https://www.nature.com/articles/s41563-019-0466-5
July 2019
We are very happy to announce the 1st International Summer school on:
"Quantum devices for non-classical light generation and manipulation"
which will be held at the Ettore Majorana foundation in Erice (Italy) in 30/09/2019-5/10/2019
We are very happy to announce the 1st International Summer school on:
"Quantum devices for non-classical light generation and manipulation"
which will be held at the Ettore Majorana foundation in Erice (Italy) in 30/09/2019-5/10/2019
April 2019
ANOTHER ONE...
A new optical table successfully installed in the lab!
ANOTHER ONE...
A new optical table successfully installed in the lab!
March 2019
THE MINIONS ARE GETTING (REALLY!) DARK
Matteo Savaresi (master student), Francesco Salusti (master student), and Emanuele Roccia (Postdoc) join the group!
Here we are all together at department of Physics, Sapienza University of Rome.
THE MINIONS ARE GETTING (REALLY!) DARK
Matteo Savaresi (master student), Francesco Salusti (master student), and Emanuele Roccia (Postdoc) join the group!
Here we are all together at department of Physics, Sapienza University of Rome.
February 2019
After countless hours in the lab, we have finally managed to perform "THE EXPERIMENT", i.e.
"Entanglement Swapping with photons generated on-demand by a quantum dot"
see Arxiv:1901.06646 (2019)
Many congratulations to all, and in particular to
Francesco, Michele, Christian and Davide!!
After countless hours in the lab, we have finally managed to perform "THE EXPERIMENT", i.e.
"Entanglement Swapping with photons generated on-demand by a quantum dot"
see Arxiv:1901.06646 (2019)
Many congratulations to all, and in particular to
Francesco, Michele, Christian and Davide!!
We are very happy to announce that our work on
"All-photonic quantum teleportation using on-demand solid-state quantum emitters”
has just appeared in Science Advances
see Science Advances 4.12 (2018): eaau1255
The work has been also highghlighted in Phys.Org
December 2018
Here you go with a picture of the particpants to the
6th EQEP-2018 Workshop
http://eqep-workshop.eu/
October 2018
Our work on
"All-photonic quantum teleportation using on-demand solid-state quantum emitters”
has been accepted for publication in Science Advances
Many congratulations Marcus!
Our work on
"All-photonic quantum teleportation using on-demand solid-state quantum emitters”
has been accepted for publication in Science Advances
Many congratulations Marcus!
August 2018
Our work on
"Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics”
has just appeared in Nature Communications
see Nature Communications 9, 3058 (2018)"
Many congratulations Xueyong!
Our work on
"Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics”
has just appeared in Nature Communications
see Nature Communications 9, 3058 (2018)"
Many congratulations Xueyong!
July 2018
We are very happy to announce the 6th international workshop on:
"Engineering of quantum emitter properties"
EQEP - 2018
which this year will be held at Sapienza on 5-7 December 2018.
We are very happy to announce the 6th international workshop on:
"Engineering of quantum emitter properties"
EQEP - 2018
which this year will be held at Sapienza on 5-7 December 2018.
July 2018
Our work on
"Strain-Tunable GaAs Quantum Dot: A Nearly Dephasing-Free Source of Entangled Photon Pairs on Demand"
has just appeared in Physical Review Letters!
see Phys. Rev. Lett. 121, 033902 (2018)
The work has been also highlighted in Physics (see here) and selected as Editors' suggestion... many congratulations Daniel!
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May 2018 Klaus Jöns and Katharina Zeuner from KTH Stockholm join the group for a few weeks. They will help us setting up THE EXPERIMENT... Welcome Klaus and Katha! |
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April 2018 Christian Schimpf joins the Minions!!! He is working as PhD student in the associated Nanophotonics group at the Johannes Kepler University Linz. He will spend a couple of months with us.... helping us with QUANTUM! |
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February 2018 Here we go...The Minions, i.e., The members of the Nanophotonics Group at the Department of Physics, Sapienza University of Rome. From left to right: Davide Tedeschi (Postdoc) Michele Rota (PhD student) Francesco Basso Basset (Postdoc) Rinaldo Trotta (Professor) |
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December 2017
Building up the labs at the Department of Physics, Sapienza University of Rome. Pictures from December 2017 to May 2018 |
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November 2017 Coming back to Italy after spending 8 years in Germany (Dresden) and Austria (Linz)... starting (again) building up the labs and the group, this time at the Department of Physics, Sapienza University of Rome (Italy). |
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Recent Publications
G. Peniakov, Q. Buchinger, M. Helal, S. Betzold, Y. Reum, M. B. Rota, G. Ronco, M. Beccaceci, T. M. Krieger, S. F. Covre Da Silva, A. Rastelli, R. Trotta, A. Pfenning, S. Hoefling, T. Huber-Loyola
"Polarized and Un-Polarized Emission from a Single Emitter in a Bullseye Resonator"
ArXiv:2308.06231
M. Savaresi, A. Martínez-Suárez, D. Tedeschi, G. Ronco, A. Hierro-Rodríguez, S. McVitie, S. Stroj, J. Aberl, M. Brehm, V. M. García-Suárez, M. B. Rota, P. Alonso-González, J. Martín-Sánchez, and R. Trotta
"Strain-induced dynamic control over the population of quantum emitters in two-dimensional materials"
ArXiv:2301.10273
G.-D. Cui, L. S., K. D. Jöns, M. Namazi, T. Lettner, K. D. Zeuner, L. S. Montaña, S. F. Covre da Silva, M. Reindl, H. Huang, R. Trotta, A. Rastelli, V. Zwiller, and E. Figueroa
"Coherent quantum interconnection between on-demand quantum dot single photons and a resonant atomic quantum memory"
ArXiv:2301.10326
M. B Rota, T. M. Krieger, Q. Buchinger, M. Beccaceci, J. Neuwirth, H. Huet, N. Horová, G. Lovicu, G. Ronco, S. F. Covre da Silva, G. Pettinari, M. Moczała-Dusanowska, C. Kohlberger, S. Manna, S. Stroj, J. Freund, X. Yuan, C. Schneider, M. Ježek, S. Höfling, F. Basso Basset, T. Huber-Loyola, A. Rastelli, and R. Trotta
"A source of entangled photons based on a cavity-enhanced and strain-tuned GaAs quantum dot"
ArXiv:2212.12506
F. Basso Basset, M. B. Rota, M. Beccaceci, T. M. Krieger, Q. Buchinger, J. Neuwirth, H. Huet, S. Stroz, S. F. Covre da Silva, C. Schimpf, S. Hoefling, T. Huber-Loyola, A. Rastelli, and R. Trotta
"Signatures of the optical Stark effect on entangled photon pairs from resonantly-pumped quantum dots"
ArXiv:2212.07087
A. Laneve, M. B. Rota, F. Basso Basset, N. P. Fiorente, T. M. Krieger, S. F. Covre da Silva, Q. Buchinger, S. Stroj, S. Hoefling, T. Huber-Loyola, A. Rastelli, R. Trotta, and P. Mataloni.
"Experimental multi-state quantum discrimination in the frequency domain with quantum dot light"
ArXiv:2209.08324
C. Schimpf, F. B. Basset, M. Aigner, W. Atteneder, L. Gínes, G. Undeutsch, M. Reindl, D. Huber, D. Gangloff, E. Chekhovich, C. Schneider, S. Höfling, A. Predojeviĉ, R. Trotta, and Armando Rastelli
"Hyperfine-interaction limits polarization entanglement of photons from semiconductor quantum dots"
Phys. Rev. B 108, L081405 (2023)
G. Pirard, F. Basso Basset, S. Bietti, S. Sanguinetti, R. Trotta, and G. Bester
"Effects of random alloy disorder, shape deformation, and substrate misiorientation on the exciton lifetime and fine structure splitting of GaAs/AlGaAs (111) quantum dots.
Phys. Rev. B 107, 205417 (2023)
F. Basso Basset, M. Valeri, J. Neuwirth, E. Polino, M. B. Rota, D. Poderini, G, Rodari, E. Roccia, N. Spagnolo, A. Rastelli, G. Carvacho, F. Sciarrino, and R. Trotta
„Daylight etanglement-based quantum key distribution with a quantum dot source"
Quantum Sci. Technol. 8 025002 (2023)
"Polarized and Un-Polarized Emission from a Single Emitter in a Bullseye Resonator"
ArXiv:2308.06231
M. Savaresi, A. Martínez-Suárez, D. Tedeschi, G. Ronco, A. Hierro-Rodríguez, S. McVitie, S. Stroj, J. Aberl, M. Brehm, V. M. García-Suárez, M. B. Rota, P. Alonso-González, J. Martín-Sánchez, and R. Trotta
"Strain-induced dynamic control over the population of quantum emitters in two-dimensional materials"
ArXiv:2301.10273
G.-D. Cui, L. S., K. D. Jöns, M. Namazi, T. Lettner, K. D. Zeuner, L. S. Montaña, S. F. Covre da Silva, M. Reindl, H. Huang, R. Trotta, A. Rastelli, V. Zwiller, and E. Figueroa
"Coherent quantum interconnection between on-demand quantum dot single photons and a resonant atomic quantum memory"
ArXiv:2301.10326
M. B Rota, T. M. Krieger, Q. Buchinger, M. Beccaceci, J. Neuwirth, H. Huet, N. Horová, G. Lovicu, G. Ronco, S. F. Covre da Silva, G. Pettinari, M. Moczała-Dusanowska, C. Kohlberger, S. Manna, S. Stroj, J. Freund, X. Yuan, C. Schneider, M. Ježek, S. Höfling, F. Basso Basset, T. Huber-Loyola, A. Rastelli, and R. Trotta
"A source of entangled photons based on a cavity-enhanced and strain-tuned GaAs quantum dot"
ArXiv:2212.12506
F. Basso Basset, M. B. Rota, M. Beccaceci, T. M. Krieger, Q. Buchinger, J. Neuwirth, H. Huet, S. Stroz, S. F. Covre da Silva, C. Schimpf, S. Hoefling, T. Huber-Loyola, A. Rastelli, and R. Trotta
"Signatures of the optical Stark effect on entangled photon pairs from resonantly-pumped quantum dots"
ArXiv:2212.07087
A. Laneve, M. B. Rota, F. Basso Basset, N. P. Fiorente, T. M. Krieger, S. F. Covre da Silva, Q. Buchinger, S. Stroj, S. Hoefling, T. Huber-Loyola, A. Rastelli, R. Trotta, and P. Mataloni.
"Experimental multi-state quantum discrimination in the frequency domain with quantum dot light"
ArXiv:2209.08324
C. Schimpf, F. B. Basset, M. Aigner, W. Atteneder, L. Gínes, G. Undeutsch, M. Reindl, D. Huber, D. Gangloff, E. Chekhovich, C. Schneider, S. Höfling, A. Predojeviĉ, R. Trotta, and Armando Rastelli
"Hyperfine-interaction limits polarization entanglement of photons from semiconductor quantum dots"
Phys. Rev. B 108, L081405 (2023)
G. Pirard, F. Basso Basset, S. Bietti, S. Sanguinetti, R. Trotta, and G. Bester
"Effects of random alloy disorder, shape deformation, and substrate misiorientation on the exciton lifetime and fine structure splitting of GaAs/AlGaAs (111) quantum dots.
Phys. Rev. B 107, 205417 (2023)
F. Basso Basset, M. Valeri, J. Neuwirth, E. Polino, M. B. Rota, D. Poderini, G, Rodari, E. Roccia, N. Spagnolo, A. Rastelli, G. Carvacho, F. Sciarrino, and R. Trotta
„Daylight etanglement-based quantum key distribution with a quantum dot source"
Quantum Sci. Technol. 8 025002 (2023)
