36 citations · 61 across the 5 of their papers we have counts for
7 papers
Frequency shifts heralding ground state squeezing and entanglement of two coupled harmonic oscillators
Safoura Mirkhalaf, Helmut Ritsch, Karol Gietka
It is often argued that two linearly coupled quantum harmonic oscillators, even when cooled to their ground state, display no inherently quantum features beyond quantized energy le…
Operational significance of nonclassicality in nonequilibrium Gaussian quantum thermometry
Safoura S. Mirkhalaf, Mohammad Mehboudi, Zohre Nafari Qaleh +1
We provide new operational significance of nonclassicality in nonequilibrium temperature estimation of bosonic baths with Gaussian probe states and Gaussian dynamics. We find a bou…
Critical quantum thermometry and its feasibility in spin systems
Enes Aybar, Artur Niezgoda, Safoura S. Mirkhalaf +3
In this work, we study temperature sensing with finite-sized strongly correlated systems exhibiting quantum phase transitions. We use the quantum Fisher information (QFI) approach…
Criticality-enhanced quantum sensing in ferromagnetic Bose-Einstein condensates: role of readout measurement and detection noise
Safoura S. Mirkhalaf, Daniel Benedicto Orenes, Morgan W. Mitchell +1
We theoretically investigate estimation of the control parameter in a ferromagnetic Bose-Einstein condensate near second order quantum phase transitions. We quantify sensitivity by…
Twist-and-store entanglement in bimodal and spin-1 Bose-Einstein condensates
Artur Niezgoda, Emilia Witkowska, Safoura Sadat Mirkhalaf
A scheme for dynamical stabilization of entanglement quantified by the quantum Fisher information is analyzed numerically and analytically for bimodal and spin-1 Bose-Einstein cond…
Supersensitive quantum sensor based on criticality in an antiferromagnetic spinor condensate
Safoura S. Mirkhalaf, Emilia Witkowska, Luca Lepori
We consider an antiferromagnetic Bose-Einstein condensate in a traverse magnetic field with a fixed macroscopic magnetization. The system exhibits two different critical behaviors…