55 citations · 64 across the 7 of their papers we have counts for
7 papers · 1 filter
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…
Bound entanglement in symmetric random induced states
Jonathan Louvet, François Damanet, Thierry Bastin
Bound entanglement, a weak -- yet resourceful -- form of quantum entanglement, remains notoriously hard to detect and construct. We address this in this paper by leveraging symmetr…
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…
Nonequivalence between absolute separability and positive partial transposition in the symmetric subspace
Jonathan Louvet, Eduardo Serrano-Ensástiga, Thierry Bastin +1
The equivalence between absolutely separable states and absolutely positive partial transposed (PPT) states in general remains an open problem in quantum entanglement theory. In th…
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…
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…
Tensor Representation of Spin States
O. Giraud, D. Braun, D. Baguette +2
We propose a generalization of the Bloch sphere representation for arbitrary spin states. It provides a compact and elegant representation of spin density matrices in terms of tens…