Research
Here, we present the current and past research projects, carried out in our group.
Quantum communication
Quantum communication is the use of quantum states of light or matter to transmit information in ways that surpass classical communication. Beyond cryptography, it enables tasks such as quantum teleportation, where the state of a particle is transferred without...
Topological photonics
Topological photonics is an emerging field that applies concepts from topological phases of matter to control light in novel ways. Engineering photonic structures with nontrivial topological properties enables robust light transport that is...
SPDC
Spontaneous Parametric Down-Conversion (SPDC) is a nonlinear optical process widely used to generate entangled photon pairs. In SPDC, a high-energy pump photon passing through a nonlinear crystal is converted into two lower-energy photons...
Quantum measurement
Quantum measurement is the process of extracting information from a quantum system, typically described by operators acting on a Hilbert space. The most general framework uses Positive Operator-Valued Measures (POVMs), which extend beyond...
Entanglement
Entanglement is one of the most intriguing features of quantum theory and plays a central role in quantum information science. Determining whether a given state is entangled remains a significant challenge. While Bell inequalities are commonly...
DI Quantum Key Distribution
Device-Independent Quantum Key Distribution (DI-QKD) is a next-generation approach to quantum cryptography that ensures security without requiring trust in the inner workings of the devices used. It relies only on the observation of nonlocal correlations...
Quantum cryptography
Quantum cryptography offers protocols whose security can be proven directly from information-theoretic principles and the laws of quantum mechanics, and which do not rely on any assumptions about the computational resources available to an adversary...
Quantum Contextuality
The discovery that a single joint probability distribution cannot describe quantum probabilities shows that, in quantum theory (QT), measurement outcomes cannot be predetermined independently of their context—that is, the set of other compatible measurements that might be performed...
Bell inequalities violation
We have made contributions to experimental tests of Bell inequalities and demonstrations of the nonlocal nature of quantum correlations. Our group has realized multi-photon and high-dimensional entanglement experiments that strongly violate Bell inequalities, providing robust evidence against local hidden variable models...
Quantum Sensing
Quantum sensing exploits the unique properties of quantum systems—such as superposition and entanglement—to achieve measurement precision far beyond classical limits...
Technology
Quantum integrated optics is a key technology in quantum information science that leverages photonic circuits on a chip to generate, manipulate, and detect single photons...