I attended an online school on quantum networks, quantum internet, and various topics related to quantum communication and processing information using optics

I was invited to present (again) a talk for motivating second-year students to learn about quantum mechanics.

Title: Quantum Mechanics!

I had the opportunity to discuss about the work on inequalities witnessing set coherence, contextualize, and nonlocality.

Title: Inequalities witnessing coherence, nonlocality, and contextuality

I presented a short talk for the beginning of the course in quantum physics to second-year undergraduate students. The goal was to motivate the students so that they would find the theory interesting and stay throughout the course.

Title: Why you should learn about quantum theory? 

I discussed at length novel and earlier results relating contextuality and coherence with the nonclassicality of relational quantities. 

Title: Coherence and contextuality from relational information

I introduced the concept of Kochen-Specker contextuality and discussed perspectives on how the notion of macroscopic realism can relate to Kochen-Specker and generalized contextuality. 

I (will) discuss how we studied the useful aspects of recently introduced cat states in quantum simulation and the hardness of quantum computation. We develop an infinite family of gadgets that inject interesting unitaries in a fault-tolerant way. We also apply these unitaries to understand the role of magic and entanglement in scrambling for random quantum circuits.

Title: Cat-state gadgets

In this talk I have reviewed the recent paper 'Measuring incompatibility and clustering quantum observables with a quantum switch' the authors introduce a novel measure of incompatibility. In the talk I discussed the theory of quantum combs, indefinite causal order and superposition of causal orders through the quantum switch, basic results in incompatibility theory, and the results of the paper.

Title: Measuring Incompatibility

I discuss recent results that have shown the existence of inequalities that require both dimension and coherence to be violated. I pushed in this talk the idea that this is a novel notion of coherence, viewed as a relational property, and discuss its application as a witness of irreducible Hilbert space dimension.

Title: Coherence for qdits only

In this workshop I've presented the recent developments of the event graph approach, initially introduced in this reference

Title: Inequalities witnessing coherence, nonlocality, and contextuality

In this talk I discuss two-state overlaps and higher-order Bargmann invariants, focusing on their applications in certifying linear-optical devices and in witnessing other nonclassical signatures of light, such as Hilbert space dimensionality through mode interference and imaginarity.

Title: Coherence and contextuality from relational information

In this Poster, we present recent results that show some overlap inequalities to be witnesses of magic, i.e., that states violating such inequalities must have magic resources. We then apply these facts to the task of certifying this nonclassical resource in multi-qubit quantum computers.

Title: Certifying non-stabilizerness in quantum computing networks

Certifying quantum devices and their ability to generate nonclassical data is a crucial task to calibrate and benchmark near-term quantum hardware. In this presentation I will discuss some recent efforts of using nonclassical relational information, provided by the measurement of Bargmann invariants, to witness nonclassicality. In more detail, I will discuss their potential applications for linear-optical devices.

Title: Certifying nonclassical properties with Bargmann invariants

In this presentation, I have discussed the recent work where we study basis-independent set-coherence and generalized contextuality in Mach-Zehnder interferometers. We also show a quantum advantage for the task of quantum interrogation!

Title: Is the bomb there when nobody looks?

I comment on the recently introduced resource theory of imaginarity, that is a static resource theory for which resourceful states are those that have imaginary off-diagonal elements.

Title: Resource Theory of Imaginarity

In this presentation, I have introduced the basic notions of generalized probabilistic theories and tried to motivate this field of research from a quantum foundations perspective.

Title: A first encounter with general probabilistic theories

I have presented our recent results on new inequalities for witnessing coherence and contextuality, as well as the application of these to the study and measurement of quantum properties of light in multimode interferometers.

I had the opportunity to present a poster about our recently introduced new graph approach to contextuality, the event graph approach, that might impact witnessing non-classical resources for different platforms and notions of nonclassicality.

I have had the great pleasure of participating online in this event, where I got to present a poster regarding our recent results on inequalities and also learned a great deal about GPT theory, contextuality, nonlocality, epistemically restricted theories, and more!

I have presented a poster about our recent work on inequalities witnessing coherence for sets of states, Kochen-Specker contextuality, and generalized contextuality.

I have presented online the recent developments where we demonstrate a contextual advantage for the task of quantum interrogation

I have presented a poster and a 1-minute talk about the work on witnesses of set-coherence from overlaps.

I have also participated at the online conference of ICQIF-2022 held in India, and got to see online many of the presentations of QIP-2022 held in the US.

In this presentation, I discussed the recent developments in inequalities bounding set-coherence, contextuality, nonlocality, and the application to linear-optics interferometers.

In this talk I have discussed the basic aspects of the theory of OTOC, how scrambling plays a major role in modern black-hole speculations of quantum gravity, and how it is possible to measure OTOCs using many different platforms.

I made a flash talk to present a little bit about my work with inequalities arising from graph theory! Check it out, it is just ~2.5 minutes!

Video: Witnessing non-classicality with weighted graphs - YouTube 

Poster presentation where I have discussed the following work: Emergence of Noncontextuality under Quantum Darwinism. 

Poster presentation where I have discussed the following work: Using a resource theoretic perspective to witness and engineer quantum generalized contextuality for prepare-and-measure scenarios

My former supervisor Barbara Amaral presented our work on the resource theory of generalized contextuality.

I made a journal club presentation regarding the recent introduction of the formalism of contextuality scenarios applicable for antidistinguishability by Matt Leifer and Christiano Duarte Video of the presentation.

I have discussed the recent work published in PRX Quantum

Title: Noncontextuality as a meaning of classicality in Quantum Darwinism

A presentation to discuss the contextuality in antidistinguishability by Matt Leifer and Christiano Duarte once more.

I have introduced the many definitions of contextuality and briefly mentioned some applications. 

Title: Applying contextualities: from foundations to protocols