9 papers
Quantum phase estimation for nondestructive monitoring and Wigner tomography of bosonic fields
Lucas R. S. Santos, Ciro M. Diniz, Daniel Z. Rossatto +1
Quantum phase estimation is usually introduced as an algorithmic primitive for extracting eigenphases of unitary operators. Here we show that, when implemented through a dispersive…
Trapped-ion toolbox to simulate quantum Otto heat engines
Rogério Jorge de Assis, Ciro Micheletti Diniz, Norton Gomes de Almeida +1
We present a scheme that utilizes an ion confined within a bi-dimensional trap to simulate a quantum Otto heat engine whose working substance is a two-level system. In this scheme,…
Engineered Kerr Nonlinearities for Precise Quantum Control of Fock States
Gabriella G. Damas, Ciro Micheletti Diniz, Norton G. de Almeida +2
We present a practical design framework for high-fidelity quantum control in coupled Kerr-nonlinear oscillators, directly addressing the challenge of spectral crowding. We show tha…
Interference Between Electromagnetic and Mechanical Waves
Alexandre Cesar Ricardo, Ciro Micheletti Diniz, Celso Jorge Villas-Bôas
Classically, wave interference is a phenomenon that can be explained by considering only the waves themselves, that is, without the need to consider the apparatus that monitors or…
Quantum Features of the Thermal Two-Qubit Quantum Rabi Model in Ultra- and Deep-Strong Regimes
Ciro Micheletti Diniz, Gabriella G. Damas, Norton G. de Almeida +2
Quantum correlations and non-classical states are indispensable resources for advancing quantum technologies, and their resilience at finite temperatures is crucial for practical e…
Dark States of Light and the Hidden Energy in Thermal Radiation Detection
Celso Jorge Villas-Boas, Ciro Micheletti Diniz
We develop a quantum-optical framework demonstrating that thermal radiation can confine a significant portion of its energy in dark collective modes -- highly entangled photon stat…