Multiparameter entanglement in quantum interferometry
نویسندگان
چکیده
Mete Atatüre, Giovanni Di Giuseppe, Matthew D. Shaw, Alexander V. Sergienko, Bahaa E. A. Saleh, and Malvin C. Teich Quantum Imaging Laboratory, Department of Physics, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215 Quantum Imaging Laboratory, Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215 ~Received 28 June 2001; revised manuscript received 26 October 2001; published 30 August 2002!
منابع مشابه
Even-order aberration cancellation in quantum interferometry.
We report the first experimental demonstration of even-order aberration cancellation in quantum interferometry. The effect is a spatial counterpart of the spectral group velocity dispersion cancellation, which is associated with spectral entanglement. It is manifested in temporal interferometry by virtue of the multiparameter spatial-spectral entanglement. Spatially entangled photons, generated...
متن کاملQuantum-enhanced multiparameter estimation in multiarm interferometers
Quantum metrology is the state-of-the-art measurement technology. It uses quantum resources to enhance the sensitivity of phase estimation over that achievable by classical physics. While single parameter estimation theory has been widely investigated, much less is known about the simultaneous estimation of multiple phases, which finds key applications in imaging and sensing. In this manuscript...
متن کاملQuantum techniques using continuous variables of light
We present schemes for the generation and evaluation of continuous variable entanglement of bright optical beams and give a brief overview of a variety of optical techniques and quantum communication applications on this basis. A new entanglement-based quantum interferometry scheme with bright beams is suggested. The performance of the presented schemes is independent of the relative interferen...
متن کاملDetection of quantum entanglement in physical systems
Quantum entanglement is a fundamental concept both in quantum mechanics and in quantum information science. It encapsulates the shift in paradigm, for the description of the physical reality, brought by quantum physics. It has therefore been a key element in the debates surrounding the foundations of quantum theory. Entanglement is also a physical resource of great practical importance, instrum...
متن کاملPhase-noise protection in quantum-enhanced differential interferometry
Differential interferometry (DI) with two coupled sensors is a most powerful approach for precision measurements in the presence of strong phase noise. However, DI has been studied and implemented only with classical resources. Here we generalize the theory of differential interferometry to the case of entangled probe states. We demonstrate that, for perfectly correlated interferometers and in ...
متن کامل