61 citations · 66 across the 6 of their papers we have counts for
6 papers
New encoding schemes for quantum authentication
Priscila Garcia-Fernandez, Enrique Fernandez-Martinez, Esther Perez +1
We study the potential of general quantum operations, Trace-Preserving Completely-Positive Maps (TPCPs), as encoding and decoding mechanisms in quantum authentication protocols. Th…
Quantum authentication with unitary coding sets
Esther Perez, Marcos Curty, David J. Santos +1
A general class of authentication schemes for arbitrary quantum messages is proposed. The class is based on the use of sets of unitary quantum operations in both transmission and r…
Qubit authentication
Marcos Curty, David J. Santos, Esther Perez +1
Secure communication requires message authentication. In this paper we address the problem of how to authenticate quantum information sent through a quantum channel between two com…
Quantum noise reduction in singly resonant optical devices
C. Cabrillo, J. L. Roldan, P. Garcia-Fernandez
Quantum noise in a model of singly resonant frequency doubling including phase mismatch and driving in the harmonic mode is analyzed. The general formulae about the fixed points an…
Quantum noise reduction in singly resonant sub/second harmonic generation
C. Cabrillo, J. L. Roldan, P. Garcia-Fernandez
We study the quantum noise in the harmonic mode of a singly resonant frequency doubler simultaneously driven in both modes. This simple extension of the frequency doubler greatly i…
Almost perfect squeezing at high intensities by stabilization from competing non-linearities
C. Cabrillo, J. L. Roldan, P. Garcia-Fernandez
The squeezing properties of a cavity Second Harmonic Generation (SHG) system with an added Kerr effect-like nonlinearity are studied as a function of the intra-cavity photon number…