Ludovico Lami
@ludovicolami.bsky.social
Assistant Professor (RTdB) at @sns.it. Succeeding at failing to understand quantum mechanics.
Reposted by Ludovico Lami
Turns out some ultimate limits may not be as ultimate as you think.
With Kaiyuan Ji we show how allowing just a little inconclusiveness is enough to beat fundamental bounds in quantum hypothesis testing — and much more can be achieved by accepting higher costs.
arxiv.org/abs/2510.07601
With Kaiyuan Ji we show how allowing just a little inconclusiveness is enough to beat fundamental bounds in quantum hypothesis testing — and much more can be achieved by accepting higher costs.
arxiv.org/abs/2510.07601
October 10, 2025 at 7:32 AM
Turns out some ultimate limits may not be as ultimate as you think.
With Kaiyuan Ji we show how allowing just a little inconclusiveness is enough to beat fundamental bounds in quantum hypothesis testing — and much more can be achieved by accepting higher costs.
arxiv.org/abs/2510.07601
With Kaiyuan Ji we show how allowing just a little inconclusiveness is enough to beat fundamental bounds in quantum hypothesis testing — and much more can be achieved by accepting higher costs.
arxiv.org/abs/2510.07601
Reposted by Ludovico Lami
2nd paper proves that the pretty good measurement for a general bosonic ensemble is pretty good for estimation
Combining these results, the pretty good measurement for a bosonic Gaussian ensemble is Gaussian & pretty good for estimation. So this begs for an experimental realization
2/2
Combining these results, the pretty good measurement for a bosonic Gaussian ensemble is Gaussian & pretty good for estimation. So this begs for an experimental realization
2/2
June 19, 2025 at 1:58 AM
2nd paper proves that the pretty good measurement for a general bosonic ensemble is pretty good for estimation
Combining these results, the pretty good measurement for a bosonic Gaussian ensemble is Gaussian & pretty good for estimation. So this begs for an experimental realization
2/2
Combining these results, the pretty good measurement for a bosonic Gaussian ensemble is Gaussian & pretty good for estimation. So this begs for an experimental realization
2/2
Reposted by Ludovico Lami
Two recent works joint w/ Hemant Mishra and @ludovicolami.bsky.social are ripe for quantum optics experimentalists to consider:
arxiv.org/abs/2303.04949
arxiv.org/abs/2505.20447
1st paper proves that the pretty good measurement for a bosonic Gaussian ensemble is a bosonic Gaussian measurement
1/2
arxiv.org/abs/2303.04949
arxiv.org/abs/2505.20447
1st paper proves that the pretty good measurement for a bosonic Gaussian ensemble is a bosonic Gaussian measurement
1/2
Pretty good measurement for bosonic Gaussian ensembles
The pretty good measurement is a fundamental analytical tool in quantum information theory, giving a method for inferring the classical label that identifies a quantum state chosen probabilistically f...
arxiv.org
June 19, 2025 at 1:55 AM
Two recent works joint w/ Hemant Mishra and @ludovicolami.bsky.social are ripe for quantum optics experimentalists to consider:
arxiv.org/abs/2303.04949
arxiv.org/abs/2505.20447
1st paper proves that the pretty good measurement for a bosonic Gaussian ensemble is a bosonic Gaussian measurement
1/2
arxiv.org/abs/2303.04949
arxiv.org/abs/2505.20447
1st paper proves that the pretty good measurement for a bosonic Gaussian ensemble is a bosonic Gaussian measurement
1/2
Reposted by Ludovico Lami
Happy Pi Day everyone! We are finally posting more photos!
Day 4 began with a dual feature on the generalized quantum Stein's lemma: Masahito Hayashi from The Chinese University of Hong Kong, Shenzen and Ludovico Lami from Scuola Normale Superiore (@sns.it)!
#MasahitoHayashi #LudovicoLami
Day 4 began with a dual feature on the generalized quantum Stein's lemma: Masahito Hayashi from The Chinese University of Hong Kong, Shenzen and Ludovico Lami from Scuola Normale Superiore (@sns.it)!
#MasahitoHayashi #LudovicoLami
March 15, 2025 at 3:20 AM
Happy Pi Day everyone! We are finally posting more photos!
Day 4 began with a dual feature on the generalized quantum Stein's lemma: Masahito Hayashi from The Chinese University of Hong Kong, Shenzen and Ludovico Lami from Scuola Normale Superiore (@sns.it)!
#MasahitoHayashi #LudovicoLami
Day 4 began with a dual feature on the generalized quantum Stein's lemma: Masahito Hayashi from The Chinese University of Hong Kong, Shenzen and Ludovico Lami from Scuola Normale Superiore (@sns.it)!
#MasahitoHayashi #LudovicoLami
Reposted by Ludovico Lami
I have a positive update regarding this matter:
The German National Library of Science and Technology in Hannover (TIB, www.tib.eu) confirmed that they will download and archive the entire arxiv.org as a safety measure.
The German National Library of Science and Technology in Hannover (TIB, www.tib.eu) confirmed that they will download and archive the entire arxiv.org as a safety measure.
March 10, 2025 at 11:09 AM
I have a positive update regarding this matter:
The German National Library of Science and Technology in Hannover (TIB, www.tib.eu) confirmed that they will download and archive the entire arxiv.org as a safety measure.
The German National Library of Science and Technology in Hannover (TIB, www.tib.eu) confirmed that they will download and archive the entire arxiv.org as a safety measure.
Reposted by Ludovico Lami
Our third short plenary is a merged talk about a solution for the generalized quantum Stein’s lemma, and asymptotic quantification of entanglement with a single copy. @ludovicolami.bsky.social (#qusoft and @sns.it) #MarioBerta #BartoszRegula
February 19, 2025 at 6:21 PM
Our third short plenary is a merged talk about a solution for the generalized quantum Stein’s lemma, and asymptotic quantification of entanglement with a single copy. @ludovicolami.bsky.social (#qusoft and @sns.it) #MarioBerta #BartoszRegula