6 papers
Symmetric Resourceful Steady States via Non-Markovian Dissipation
Baptiste Debecker, Eduardo Serrano-Ensástiga, Thierry Bastin +2
We prove a no-go theorem for symmetry-based dissipative engineering of collective-spin steady states: in spin-only Lindblad dynamics with jump operators linear in the collective-sp…
Coherent Generation and Protection of Anticoherent Spin States
Jérôme Denis, Colin Read, John Martin
We report the first protocol specifically designed to generate anticoherent spin- states at different orders. The protocol consists of cycles of a rotation pulse about an axis f…
Permutationally invariant processes in open multiqudit systems
T. Bastin, J. Martin
We establish the comprehensive theoretical framework for an exact description of the open system dynamics of permutationally invariant (PI) states in arbitrary -qudit systems wh…
The role of non-Markovian dissipation in quantum phase transitions: tricriticality, spin squeezing, and directional symmetry breaking
Baptiste Debecker, Lukas Pausch, Jonathan Louvet +3
Understanding how to control phase transitions in quantum systems is at the forefront of research for the development of new quantum materials and technologies. Here, we study how…
Spectral theory of non-Markovian dissipative phase transitions
Baptiste Debecker, John Martin, François Damanet
Dissipative phase transitions in quantum systems have been largely studied under the so-called Markovian approximation, where the environments to which the systems are coupled are…
Dissipative phase transition: from qubits to qudits
Lukas Pausch, François Damanet, Thierry Bastin +1
We investigate the fate of dissipative phase transitions in quantum many-body systems when the individual constituents are qudits (-level systems) instead of qubits. As an examp…