4 papers
A Variational Framework for Time-Dependent Quantum Systems with Applications to Floquet Hamiltonians
Ibsal Assi, Meenu Kumari, J. P. F. LeBlanc
We introduce a variational framework for approximating the time-evolution operator within a physically motivated operator manifold, reformulating quantum dynamics as a…
Beyond Trotterization: Variational Product Formulas for Quantum Simulation
Ibsal Assi, Michael Vogl, Meenu Kumari +1
We propose a variational alternative to the Trotter-Suzuki decomposition that provides greater control over errors while preserving the unitary structure of time evolution. The var…
Resonant fragility and nonresonant robustness of Floquet eigenstates in kicked spin systems
Jesús A. Segura-Landa, Meenu Kumari, Daniel J. Nader +3
In classical systems, the Kolmogorov-Arnold-Moser (KAM) theorem establishes that resonant tori of integrable Hamiltonians are destroyed by any nonintegrable perturbation, whereas n…
Exponential onset of scalable entanglement via twist-and-turn dynamics in XY models
Tommaso Roscilde, Meenu Kumari, Alexandre Cooper +1
The efficient preparation of scalable multipartite entanglement is a central goal in the development of next-generation quantum devices. In this work, we show that the so-called ``…