53 citations
4 papers
Husimi-Wigner representation of chaotic eigenstates
Fabricio Toscano, Anatole Kenfack, Andre R. R. Carvalho +2
Just as a coherent state may be considered as a quantum point, its restriction to a factor space of the full Hilbert space can be interpreted as a quantum plane. The overlap of suc…
Quantum metrology at the Heisenberg limit with ion traps
D. A. R. Dalvit, R. L. de Matos Filho, F. Toscano
Sub-Planck phase-space structures in the Wigner function of the motional degree of freedom of a trapped ion can be used to perform weak force measurements with Heisenberg-limited s…
Quantum to classical transition in a system with a mixed classical dynamics
Fabricio Toscano, Diego A. Wisniacki
We study how decoherence rules the quantum-classical transition of the Kicked Harmonic Oscillator (KHO). When the amplitude of the kick is changed the system presents a classical d…
Direct measurement of the quantum state of the electromagnetic field in a superconducting transmission line
F. de Melo, L. Aolita, F. Toscano +1
We propose an experimental procedure to directly measure the state of an electromagnetic field inside a resonator, corresponding to a superconducting transmission line, coupled to…