12th of November 2025
8:45h – Opening
9h – Broadcast of a Lecture from Dan Kleppner on Quantum Mechanics
9:45h – Bill Phillips (online talk)
“Past, Present and Future of Quantum”
100 years ago quantum mechanics gave birth to a scientific and technological revolution that touched most people on earth. Today, what is being hailed as a second quantum revolution is putting quantum weirdness to work.
10:30h – Coffe Break
11h – Celso Villas-Bôas
“Dark and Bright Collective States and the Hidden Energy in Thermal Light”
The bright and dark states—collective mode states that either couple or do not couple to matter—offer new insights into the fundamental aspects of interference with coherent light, providing an alternative explanation for the apparent absence of photons in the dark regions of double- (or multiple-) slit experiments. This reinterpretation opens avenues for further exploration of interference effects and the nature of the light field. A natural question then arises: Could incoherent light also exhibit a decomposition into bright and dark states? The answer is yes, but even more striking is the dominance of dark states: for M modes in thermal light states, the fraction of energy confined to dark states is (M–1)/M, implying that a vast majority of the energy remains inaccessible to direct detection.
12h – Lunch
14h – Gehard Rempe
Quo vadis, entanglement?
Entanglement is a quantum phenomenon that is expected to fully unfold in systems composed of multiple qubits. However, creating customized multi-qubit entanglement and exploring its application potential is a formidable challenge. Using single atoms in an optical cavity as a source of triggered photons, we have synthesized a plethora of almost arbitrary entanglement topologies described by graphs. These open the door to a multitude of novel applications such as quantum error correction in photonic quantum computation and quantum communication with tolerance against omnipresent photon loss.
15h – Break
15:30h – Daniel Magalhães
Atomic Standards of Time and Frequency and timekeeping applications
Time and frequency atomic references have been used as the fundamental standards for several applications in our daily lives. From basic research, aimed at studying fundamental constants, to applications such as geolocation systems, these references are part of our routine in areas that we sometimes do not imagine. This presentation will give an overview of the field, showing a bit of history, the current state-of-the-art and discussing some applications, like remote comparisons, time transfer and their needs and limitations.
13th of November 2025
9h – Broadcast of a Lecture from Dan Kleppner on Quantum Mechanics
9:45h – Massimo Inguscio (online talk) – TBA
10:30h – Coffe Break
11h – Claudio Lenz Cesar
Espectroscopia de Hidrogênio e Antihidrogênio: da Mecânica Quântica a QED e além(?).
Faço um passeio pela conexão do estudo do átomo de hidrogênio (H) ao desenvolvimento da Mecânica Quântica e aplicações em nosso conhecimento do Universo. Descrevo experimentos feitos no grupo de Daniel Kleppner na espectroscopia de hidrogênio aprisionado, um feito que persiste por 30 anos, e que foi um grande impulso à pesquisa com antihidrogênio (anti-H) no CERN. Trago as últimas notícias das pesquisas com anti-H no CERN. A análise cega dos últimos dados por uma teoria recente de forma-de-linha espectral nos permite prever resultados com incerteza em 13 ou 14 algarismos significativos. A extrapolação do resultado de H (na ausência de campo magnético) para nossa armadilha de anti-H na comparação entre matéria e antimatéria à partir deste ponto desafia a própria teoria de QED que precisaria calcular correções relativísticas de ordem superior. Felizmente, acabamos de realizar uma prova-de-princípio, que poderemos fazer espectroscopia de H na mesma armadilha de anti-H, sob as mesmas condições. Alguns feitos e histórias de Daniel Kleppner permeiam esta palestra.
12h – Lunch
14h – Guglielmo Tino
Testing gravitational physics with atomic quantum sensors
I will present recent experiments and future perspectives on precision
tests of gravitational physics with state-of-the-art quantum devices
based on ultracold atoms. In particular, I will discuss how atom
interferometers and optical clocks open new opportunities to probe
fundamental physics and to pursue applications, both in terrestrial
laboratories and in space.
15h – Break
15:30h – Amilson Fritsch
Trapped Ions as a Platform for Quantum Computing and Quantum Networking
Trapped ions are a remarkably versatile physical system that has been widely employed in a variety of applications. Although they are best known for their role in quantum computing, where their long coherence times and individual control allow the realization of high-fidelity quantum gates and complex algorithms, their use extends well beyond computation. The same level of control that enables logical operations also makes trapped ions ideal candidates for precision metrology and quantum sensing. In frequency standards, optical clocks based on trapped ions have achieved fractional uncertainties at the 10⁻19 level, establishing new frontiers in time and frequency metrology. More recently, trapped ions have gained attention in the context of quantum communication and networking, where researchers have demonstrated entanglement between a trapped ion and a photon, opening the possibility of connecting distant quantum computers through optical links. In this talk, I will present an overview of the many applications of trapped ions, focusing on their use in quantum computing and quantum communication.
16:30h – Lab Tours
18:00 – Aula Pública – Afinal, o que é Mecânica Quântica? Seus Fundamentos e Aplicações
14th of November 2025
9h – Broadcast of a Lecture from Dan Kleppner on Quantum Mechanics
9:45h – John Doyle (online talk)
Ultracold molecules for quantum science
The nineteenth century gave birth to not only classical electromagnetic theory, but also laid the groundwork for the development of quantum mechanics. The core of the connection between these two was spectroscopy. The richness of the spectra from both earth-based and astronomical sources was at the same time beautiful and bedeviling. It took development of ideas from both physics and chemistry to begin to make sense of these spectra. Wave resonances and complex structures were part of many models of “atoms”, long before the electron was discovered and the development of the Schrodinger equation. Today, we have used spectroscopy to design schemes for single quantum state control over ever more complex quantum systems. We can hold single polyatomic molecules in optical tweezers and have single quantum state control of even symmetric top molecules. Furthermore, entanglement between single molecules is now a reality. I will discuss features of polyatomic molecules that can be used in quantum simulation/computation and the search for physics beyond the Standard Model. I will discuss our results on the laser cooling of polyatomic molecules into the ultracold regime, including the laser cooling of several different polyatomic species. We realize a tweezer array of single CaOH molecules, a robust MOT and optical dipole trap for SrOH, and one-dimensional laser cooling of CaOCH3. In very recent work we have characterized a new qubit, one composed of parity doublet states in a vibrational bending mode of CaOH. This sets the stage for using SrOH and RaOH for future experiments searching for the electron electric dipole moment, a probe for BSM physics, eventually up to 1000 TeV range, as well as searching for ultralight Dark Matter.
10:30h – Coffe Break
11h – Ben Hur Viana Borges – FAPESP/QuTIA
Programa FAPESP em Tecnologias Quânticas: QuTIa: Quantum Technologies InitiAtive
12h – Felipe F. Fanchini – UNESP
How Quantum Algorithms Could Shape the Future of Healthcare
In this talk, we will discuss how quantum computing can transform the healthcare field, an area that deals daily with massive volumes of data and complex processing challenges. We will present examples of how quantum computers can accelerate the development of new drugs, as well as emerging applications in quantum optimization and machine learning aimed at medicine and biotechnology. We will also highlight recent results from international research and the role of Brazilian networks and institutes dedicated to quantum information science and technology. The goal is to show that the era of quantum computing applied to healthcare has already begun and that it is urgent to invest in research, innovation, and the training of skilled professionals for this new paradigm.
Closing – Vanderlei Salvador Bagnato