Hacia la distribución cuántica de claves en espacio libre a ... MJ García-Martínez *, D. Soto, N.... more Hacia la distribución cuántica de claves en espacio libre a ... MJ García-Martínez *, D. Soto, N. Denisenko y V. Fernández ... Instituto de Física Aplicada, Consejo Superior de Investigaciones Científicas, Serrano 144, 28006 Madrid ... En el presente trabajo se describe el diseño e ...
Abstmct-A new monodomensional approximate solution of the transient acoustic field is presented, ... more Abstmct-A new monodomensional approximate solution of the transient acoustic field is presented, which can be easily implemented on small minicomputers. The acoustic field generated by a monodimensional source is simply expressed by a sum of a small number of terms, reducing significantly the complexity of the operations involved. The numerical results obtained with this method are remarkably in agreement with those obained through the exact convolutional method. It is shown that the proposed approximate monodimensional method can be usefully employed for the design and optimization of both linear-and sector-scanning visualization systems.
Various considerations about the present and future of quantum cryptography together with a secur... more Various considerations about the present and future of quantum cryptography together with a security analysis are discussed in this paper. We also present a free-space GHz-clocked QKD system designed for urban links.
We report a free-space quantum key distribution system designed for high-speed key transmission i... more We report a free-space quantum key distribution system designed for high-speed key transmission in urban areas. Clocking the system at gigahertz frequencies and efficiently filtering background enables higher secure key rates than those previously achieved by similar systems. The transmitter and receiver are located in two separate buildings 300 m apart in downtown Madrid and they exchange secure keys at rates up to 1 Mbps. The system operates in full bright daylight conditions with an average secure key rate of 0.5 Mbps and 24 h stability without human intervention.
Hacia la distribución cuántica de claves en espacio libre a ... MJ García-Martínez *, D. Soto, N.... more Hacia la distribución cuántica de claves en espacio libre a ... MJ García-Martínez *, D. Soto, N. Denisenko y V. Fernández ... Instituto de Física Aplicada, Consejo Superior de Investigaciones Científicas, Serrano 144, 28006 Madrid ... En el presente trabajo se describe el diseño e ...
Abstmct-A new monodomensional approximate solution of the transient acoustic field is presented, ... more Abstmct-A new monodomensional approximate solution of the transient acoustic field is presented, which can be easily implemented on small minicomputers. The acoustic field generated by a monodimensional source is simply expressed by a sum of a small number of terms, reducing significantly the complexity of the operations involved. The numerical results obtained with this method are remarkably in agreement with those obained through the exact convolutional method. It is shown that the proposed approximate monodimensional method can be usefully employed for the design and optimization of both linear-and sector-scanning visualization systems.
Various considerations about the present and future of quantum cryptography together with a secur... more Various considerations about the present and future of quantum cryptography together with a security analysis are discussed in this paper. We also present a free-space GHz-clocked QKD system designed for urban links.
We report a free-space quantum key distribution system designed for high-speed key transmission i... more We report a free-space quantum key distribution system designed for high-speed key transmission in urban areas. Clocking the system at gigahertz frequencies and efficiently filtering background enables higher secure key rates than those previously achieved by similar systems. The transmitter and receiver are located in two separate buildings 300 m apart in downtown Madrid and they exchange secure keys at rates up to 1 Mbps. The system operates in full bright daylight conditions with an average secure key rate of 0.5 Mbps and 24 h stability without human intervention.
Uploads
Papers by N. Denisenko