ERC CoG project "TICTOCGRAV - Exploring Gravity with Ultra-cold Cadmium and Strontium Optical Clocks and Bragg Interferometers" will explore the limits of contemporary physics with a new generation of atomic quantum sensors, namely optical atomic clocks and atomic gravimeters. TICTOCGRAV will focus on ultimate precision tests of gravity with fountains of alkali-earth metals, namely Cadmium and Strontium atoms. Specifically, TICTOCGRAV will perform the highest precision tests so far of: the weak equivalence principle (WEP) below 10^-13 with quantum probes, exploring also possible tests of spin-gravity couplings at the same level; - quantum interference of high precision clocks in a gravitational potential; demonstrating for the first time gravity induced decoherence mechanisms, opening the way towards a possible explanation of quantum to classical transition in macroscopically entangled quantum systems. 2018-2023
"TAIOL - Trapped Atom Interferometers in Optical Lattices" is a project under the QUANTERA - Cofund Initiative in Quantum Technologies - call. The project targets to establish a new class of sensors employing interferometers based on atoms trapped in optical lattices. Innovative approaches and methods have to be explored in order to achieve new devices with sensitivities and spatial resolutions far beyond state of the art. The consortium, formed by experts on atomic sensors and metrology from SYRTE (F), IOGS/LP2N (F), LUH-IQO (D), CNR-INO (I), UW (P) is coordinater by Dr. F. Pereira dos Santos. The main aim of the project, will be the development of a new class of atomic sensors for high precision measurements in applied and fundamental physics. New methods for separating a split atomic sample far apart while maintaining the quantum coherence, will be studied. We will learn how to tame harmful decoherence effects by either controlling the strength of the two-body interactions or using novel sources of ultra-cold atoms. We will develop the theoretical and the experimental methods to implement an entanglement-enhanced as well as a chaos-enhanced atom-light coupled sensor, an avantgarde approach to the ultra-precise metrology. The accomplishment of the goals set in TAIOL will open new possibilities for a wide range of applications, such as gravimetry and surface force measurements with the perspective of future industrial implementations. 2018-2020
I've carried out my research activity mainly at European Laboratory for Non-Linear Spectroscopy (LENS - Laboratorio Europeo di Spettroscopia Nonlineare) in Firenze – Italy, in collaboration with other national and international research laboratories as:-“Instituto de Fısica dell’Universidad Nacional Autonoma de Mexico” (UNAM) -“Istituto Nazionale di Ricerca Metrologica”, (INRIM) in Torino- Italy,-“Politecnico di Torino” -“Istituto Superiore Sant’anna” and “Dipartimento di Fisica” in Pisa -“CNR-IMM” in Bologna -“Institute of Laser Physics” in Novosibirsk -“Physikalisch-Technische Bundesanstalt (PTB)” in Braunschweig, - Dusseldorf University, the -“National Institute of Standards and Technology” (NIST) and the “Joint Institute for Laboratory Astrophysics” (JILA) in Boulder, CO (USA).
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