42 citations · 140 across the 7 of their papers we have counts for
7 papers
Eigenstate entanglement in integrable collective spin models
Meenu Kumari, Álvaro M. Alhambra
The average entanglement entropy (EE) of the energy eigenstates in non-vanishing partitions has been recently proposed as a diagnostic of integrability in quantum many-body systems…
Quantum coherence as a signature of chaos
Namit Anand, Georgios Styliaris, Meenu Kumari +1
We establish a rigorous connection between quantum coherence and quantum chaos by employing coherence measures originating from the resource theory framework as a diagnostic tool f…
Wigner negativity in spin- systems
Jack Davis, Meenu Kumari, Robert B. Mann +1
The nonclassicality of simple spin systems as measured by Wigner negativity is studied on a spherical phase space. Several SU(2)-covariant states with common qubit representations…
Untangling entanglement and chaos
Meenu Kumari, Shohini Ghose
We present a method to calculate an upper bound on the generation of entanglement in any spin system using the Fannes-Audenaert inequality for the von Neumann entropy. Our method n…
Quantum-classical correspondence in the vicinity of periodic orbits
Meenu Kumari, Shohini Ghose
Quantum-classical correspondence in chaotic systems is a long-standing problem. We describe a method to quantify Bohr's correspondence principle and calculate the size of quantum n…
Stabilizing quantum dynamics through coupling to a quantized environment
Meenu Kumari, Eduardo Martin-Martinez, Achim Kempf +1
We show that introducing a small uncertainty in the parameters of quantum systems can make the dynamics of these systems robust against perturbations. Concretely, for the case wher…