2 papers
quant-ph2025
Non-Gaussian generalized two-mode squeezing: applications to two-ensemble spin squeezing and beyond
Mikhail Mamaev, Martin Koppenhöfer, Andrew Pocklington +1
Bosonic two-mode squeezed states are paradigmatic entangled Gaussian states that have wide utility in quantum information and metrology. Here, we show that the basic structure of t…
quant-ph2024
Revisiting the impact of dissipation on time-reversed one-axis-twist quantum-sensing protocols
Martin Koppenhöfer, A. A. Clerk
Spin squeezing can increase the sensitivity of interferometric measurements of small signals in large spin ensembles beyond the standard quantum limit. In many practical settings,…