Research

What I Do

Her research focuses on many-body open quantum systems and methods for extracting information depending on system-bath interactions. This required going beyond quantum master equations like Lindblad's, so I developed a code to apply the density matrix renormalization group to study equilibrium properties and the time-dependent variational principle to study the dynamics of an open system represented as a matrix product state. She characterized the driven dissipative Berezinskii-Kosterlitz-Thouless quantum phase transition (QPT) in the open Rabi model induced by bath coupling, and analyzed its dynamics from weak to ultra-strong coupling regimes, where decoherence enhances qubit-oscillator coherence and Bloch vector estimation. She has studied information encoding under dissipation via decoherence-free subspaces and explored the interplay between topology and bath effects. In the two-qubit quantum Rabi model, she identified two distinct dynamical QPTs through non-analyticities in Loschmidt echo rate functions, tunable via qubit entanglement and interaction. Her work also includes the study of global and local ergotropy in open systems viewed as quantum batteries, highlighting local ergotropy as a dynamical marker for QPTs and localization phenomena in disordered XXZ spin chains undergoing an Anderson-MBL-ergodic transition. Additionally, she applied Navascués-Pironio-Acín hierarchy of semi-definite program to the stationary analysis of observables within the Lindblad framework.

Currently, her research spans a wide range of topics in open quantum systems, such as many-body localization, non-Hermitian approaches, and critical phenomena driven by environmental interactions, with a focus on transport phenomena in fermionic reservoirs and on the use of quantum Fisher information to probe system-bath coupling effects.

Publications

Check My Works

Qubit-oscillator relationships in the open quantum Rabi model: the role of dissipation

Signatures of Dissipation Driven Quantum Phase Transition in Rabi Model

Optimal encoding of two dissipative interacting qubits

Witnessing environment induced topological phase transitions via quantum Monte Carlo and cluster perturbation theory studies

Dynamics of open quantum systems: From the Rabi model to coupled qubits

Environment induced dynamical quantum phase transitions in two-qubit Rabi model

Local ergotropy and its fluctuations across a dissipative quantum phase transition

Certifying steady-state properties of open quantum systems

Local ergotropy dynamically witnesses many-body localized phases