Catalogo Ricerca UNIROMA1

This contribution investigates Marilleva (Val di Sole, Trentino, Italy) as a situated experiment in architectural research and high-altitude planning. Conceived between 1967 and 1977 in the wake of the Trentino Provincial Urban Plan coordinated by Giuseppe Samonà, Marilleva represents a paradigmatic case of architecture operating across multiple latitudes—territorial, climatic, socio-political, and epistemological. Designed as a prototype of Alpine tourist urbanization, it emerged from a vis...

From Knowledge to Action. Reading the Prenestina Corridor through Urban Archaeology and Adaptive Common Spaces Design

This paper examines how urban archaeology can serve as both a conceptual lens and an operational support for adaptive and sustainable urban design. Focusing on the Prenestina corridor in Rome, the study reads this extensive urban axis – where Roman infrastructure, archaeological areas, twentieth-century industrial landscapes, and post-war residential fabrics overlap – as a living archaeological system in which past and present continuously interact. The argument is grounded in the collective ...

Efficient quantum space-division multiplexing using time-bin and phase encoding in few-mode fibers

Space-division multiplexing using multimode optical fibers has been applied to quantum-level signals with time-bin and phase encoding, achieving megaqubits per second over 8 km of few-mode fiber. Time windowing is efficiently employed to eliminate modal crosstalk between quantum channels. The dead time of the single-photon detectors in each quantum channel, typically regarded as a bottleneck in quantum transmission, is synchronized with the time-window intervals, thereby optimizing the detect...

Non-uniform modal power distribution caused by disorder in multimode fibers

The evolution of modal crosstalk in multimode fibers is investigated using four different experimental and numerical approaches. Results converge to demonstrate that the fiber disorder alone is capable of generating steady states characterized by non-uniform modal power distributions, which promote the lower-order modes at the expense of the higher-order ones and are properly described by a weighted Bose–Einstein law.

Raman-accelerated power depletion of the fundamental mode in a few-mode fiber in the visible spectral range

This study unravels the underlying physical mechanisms responsible for the power-dependent depletion of the fundamental mode in few-mode fibers. Utilizing a holographic mode decomposition technique, our experiments reveal an accelerated amplification of higher-order modes at the expense of the LP01 mode. This process modifies the initial modal fractions and ultimately yields an intensity-null profile from a superposition of degenerate modes. Notably, simulations indicate that purely Kerr-driv...

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