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Quantum Sensitivity refers to the ability of a quantum metrological device to detect small changes in a physical quantity, which can be enhanced by utilizing quantum states such as squeezed states or entangled states.

Quantum Shot Noise is the form of statistical noise intrinsic to quantum systems, particularly noticeable when dealing with few particles. Metrological techniques aim to minimize shot noise to enhance measurement accuracy.

Quantum Entanglement is a physical phenomenon occurring when pairs or groups of particles interact in ways such that the quantum state of each particle cannot be described independently of the other particles, even when separated by large distances.

The Heisenberg Uncertainty Principle states that it is impossible to simultaneously know both the exact position and exact momentum of a particle because the more precisely one property is measured, the less precisely the other can be controlled, known as quantum noise.

The Phase Estimation Algorithm is a quantum algorithm used to estimate the phase (eigenvalue) of an eigenstate of a unitary operator. It's crucial for applications in quantum metrology, where phases can be remarkably precise physical parameters.

Quantum Decoherence is the loss of quantum coherence in which the quantum system transitions from a pure state to a mixed state, which can adversely affect the precision of quantum metrological measurements.

Quantum Metrology is the study of making high-precision measurements using quantum mechanical systems, leveraging quantum entanglement and superposition to improve the sensitivity and resolution of measurements beyond classical limitations.

Schrödinger's Cat State refers to a quantum state which is a superposition of two macroscopically distinguishable states, analogous to Schrödinger's thought experiment. In quantum metrology, it can be used for precise measurements.

NOON states are a particular type of entangled state used in quantum metrology, useful for achieving high-precision measurements. They are represented as a superposition of 'N' photons being in one path and none in the other, or vice versa.

Quantum Squeezing is a process that reduces quantum uncertainty in one variable at the expense of increasing uncertainty in the conjugate variable, therefore enhancing measurement precision in quantum metrology.

The Standard Quantum Limit (SQL) is the limit on the precision of measurements for a quantum system that is not entangled, often given by the Heisenberg uncertainty principle for independent particles.

Quantum Fisher Information is a measure of the amount of information that an observable random variable carries about an unknown parameter upon which the probability depends. It's essential for finding the best measurement strategy in quantum metrology.

LOCC is a method of quantum operation that involves two parties performing local quantum operations and sharing the results through classical communication. It's important in quantum metrology for protocols like quantum teleportation.

Bell Test Experiments are designed to demonstrate the real effects of quantum entanglement and refute the principle of local realism. They are foundational in the field of quantum metrology for their demonstration of quantum non-locality.

A Mach-Zehnder Interferometer is a device used to measure the relative phase shift between two colliding beams of light due to different path lengths, crucial for precision measurements in quantum metrology.

Weak Measurement is a quantum measurement strategy where the system is disturbed only slightly, which can provide information about the complementary properties of the system, useful in quantum metrology to reduce back-action.

Quantum Cryptography is the use of quantum mechanical principles to perform cryptographic tasks or to break cryptographic systems, though it falls outside the typical scope of metrology, it shares many foundational principles.

Quantum Imaging is a technique that uses quantum properties such as entanglement to surpass classical imaging limits, achieving higher resolution or image acquisition using fewer photons.

Quantum Repeaters are devices used in quantum communication to extend the distance of quantum states without the signal degradation typical in classical repeaters, indirectly relevant to the precision and accuracy of quantum metrology.