Quantum Noise refers to intrinsic fluctuations that arise from the quantum nature of physical systems. Unlike classical noise, quantum noise persists even at absolute zero temperature due to uncertainty principles. It plays a critical role in quantum optics, quantum electronics, and precision measurements. Quantum noise limits the sensitivity of detectors, amplifiers, and interferometers. Understanding quantum noise is essential for developing low-noise quantum devices and improving measurement accuracy. In quantum communication and computing, noise causes errors and loss of coherence. Techniques such as squeezing and error correction are used to mitigate its effects. Quantum noise reveals the fundamental limits imposed by quantum mechanics and is central to both theoretical studies and technological applications.
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