4.2k citations
- University of SalernoIT19 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT18 papers
- National Interuniversity Consortium for the Physical Sciences of MatterIT18 papers
- Politecnico di TorinoIT16 papers
- University of MilanIT16 papers
- Centre National de la Recherche ScientifiqueFR15 papers
- Sapienza University of RomeIT14 papers
- University of Southern CaliforniaUS14 papers
- Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Salerno13 papers
- Indiana University BloomingtonUS10 papers
- Université Paris-SudFR8 papers
- Centre de Physique ThéoriqueFR7 papers
4 papers · 2 filters
Mixed-state fidelity and quantum criticality at finite temperature
Paolo Zanardi, H. T. Quan, Xiaoguang Wang +1
We extend to finite temperature the fidelity approach to quantum phase transitions (QPTs). This is done by resorting to the notion of mixed-state fidelity that allows one to compar…
Determination of ground state properties in quantum spin systems by single qubit unitary operations and entanglement excitation energies
S. M. Giampaolo, F. Illuminati, P. Verrucchi +1
We introduce a method for analyzing ground state properties of quantum many body systems, based on the characterization of separability and entanglement by single subsystem unitary…
Coexistence of unlimited bipartite and genuine multipartite entanglement: Promiscuous quantum correlations arising from discrete to continuous variable systems
Gerardo Adesso, Marie Ericsson, Fabrizio Illuminati
Quantum mechanics imposes 'monogamy' constraints on the sharing of entanglement. We show that, despite these limitations, entanglement can be fully 'promiscuous', i.e. simultaneous…
Entangling spins by measuring charge: a parity-gate toolbox
Radu Ionicioiu
The parity gate emerged recently as a promising resource for performing universal quantum computation with fermions using only linear interactions. Here we analyse the parity gate…