Low-Dimensional Systems are physical systems in which charge carriers are confined to one or two spatial dimensions. Examples include quantum wells, quantum wires, and two-dimensional materials. Reduced dimensionality leads to enhanced quantum effects and altered electronic density of states. These systems exhibit novel phenomena such as quantized conductance and enhanced electron correlations. Low-dimensional systems are central to nanophysics, condensed matter physics, and device engineering. They provide platforms for studying fundamental quantum behavior and developing nanoscale electronics. Their properties can be tuned through geometry, external fields, and material choice. Low-dimensional systems are critical for modern technologies such as transistors, sensors, and quantum devices. They highlight how dimensionality fundamentally shapes physical behavior.
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