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Quantum Wavemetry via the Mth-Power Unitary of a Mach-Zehnder Interferometer
B. S. Ham
A quantum wavemetry scheme based on the coherence de Broglie wavelength (CBW) is proposed using an M coupled Mach Zehnder interferometer (MZI) architecture to achieve superresoluti…
A quantum-operator analysis of N-fold phase accumulation in coherence de Broglie wavelength interferometry
B. S. Ham
Quantum sensing exploits nonclassical states of light, including multiphoton entangled states and squeezed states, to achieve superresolution and/or super-sensitivity. However, its…
A superresolution-enhanced spectrometer beyond the Cramer-Rao bound in phase sensitivity
Byoung S. Ham
Precision measurement has been an important research area in sensing and metrology. In classical physics, the Fisher information determines the maximum extractable information from…
Coherence spectroscopy by the Nth power of the measured signal in an interferometer overcoming the diffraction limit
Byoung S. Ham
Coherence spectroscopy has been intensively studied over the last several decades for various applications in science and engineering. The Rayleigh criterion defines the resolution…