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Conclusive Precision Bounds for SU(1,1) Interferometers
Chenglong You, Sushovit Adhikari, Xiaoping Ma +3
In this paper, we revisit the quantum Fisher information (QFI) calculation in SU(1,1) interferometer considering different phase configurations. When one of the input modes is a va…
Entanglement-enhanced optical gyroscope
Matthias Fink, Fabian Steinlechner, Johannes Handsteiner +3
Fiber optic gyroscopes (FOG) based on the Sagnac effect are a valuable tool in sensing and navigation and enable accurate measurements in applications ranging from spacecraft and a…
Deterministic generation of hybrid high-N00N states with Rydberg ions trapped in microwave cavities
Naeimeh Mohseni, Shahpoor Saeidian, Jonathan P. Dowling +1
Trapped ions are among the most promising platforms for quantum technologies. They are at the heart of the most precise clocks and sensors developed to date, which exploit the quan…
High precision Optical AC Magnetometry using Dynamical Decoupling
Manish K. Gupta, Jonathan Kunjummen, Xiaoting Wang +1
We propose a magnetometer for the precise measurement of AC magnetic fields that uses a Terbium-doped optical fiber with half-waveplates built into it at specified distances. Our s…
Fast Amplification and Rephasing of Entangled Cat States in a Qubit-Oscillator System
Z. Xiao, T. Fuse, S. Ashhab +5
We study a qubit-oscillator system, with a time-dependent coupling coefficient, and present a scheme for generating entangled Schrödinger-cat states with large mean photon numbers…
Relativity of quantum states in entanglement swapping: Violation of Bell's inequality with no entanglement
Chris Nagele, Ebubechukwu O. Ilo-Okeke, Peter P. Rohde +2
The entanglement swapping protocol is analyzed in a relativistic setting, where shortly after the entanglement swapping is performed, a Bell violation measurement is performed. Fro…