6 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…
Quantum Resonator as a Directional Quantum Emitter
Luiz O. R. Solak, Bruno L. Vermes, Antonio S. M. de Castro +2
Single-photon sources are essential for testing fundamental physics and for the development of quantum technologies. In this work a single-photon source is investigated, based on a…
Building Block For Universal Continuous Variables Computation In Superconducting Devices
Bruno A. Veloso, Ciro M. Diniz, Luiz O. R. Solak +3
Continuous variable (CV) quantum computation offers an alternative to qubit-based computing by exploiting the infinite-dimensional Hilbert space of bosonic modes. Despite recent pr…
Beam splitter for dark and bright states of light
Luiz O. R. Solak, Celso J. Villas-Boas, Daniel Z. Rossatto
Beam splitters are indispensable elements in optical and photonic systems, and are therefore employed in both classical and quantum technologies. Depending on the intended applicat…
High Efficiency Storage of Quasi-Classical and Quantum States in Coupled Resonators
Luiz O. R. Solak, Ciro M. Diniz, Daniel Z. Rossatto +3
We propose an optical model in which both quantum and quasi-classical states can be ideally stored using coupled resonators. The protocol is based on a time-dependent coupling betw…
Fundamental limit to cavity linewidth narrowing with single atoms
Lucas R. S. Santos, Murilo H. Oliveira, Luiz O. R. Solak +2
The electromagnetically induced transparency (EIT) is a quantum interference phenomenon capable of altering the optical response of a medium, turning an initially opaque atomic sam…