518 citations
- Technische Universität DarmstadtDE11 papers
- Institut de Physique ThéoriqueFR9 papers
- University of TrentoIT9 papers
- CEA Paris-SaclayFR7 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR7 papers
- Universitat de ValènciaES6 papers
- Heidelberg UniversityDE5 papers
- Brookhaven National LaboratoryUS4 papers
- Istituto Nazionale di Fisica NucleareIT4 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT4 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT4 papers
4 papers · 1 filter
Ramsey interferometry with a spin embedded in a Coulomb chain
Gabriele De Chiara, Tommaso Calarco, Shmuel Fishman +1
We show that the statistical properties of a Coulomb crystal can be measured by means of a standard interferometric procedure performed on the spin of one ion in the chain. The ion…
Coulomb analogy for nonhermitian degeneracies near quantum phase transitions
P. Cejnar, S. Heinze, M. Macek
Degeneracies near the real axis in a complex-extended parameter space of a hermitian Hamiltonian are studied. We present a method to measure distributions of such degeneracies on t…
Excited state quantum phase transitions in many-body systems
M. A. Caprio, P. Cejnar, F. Iachello
Phenomena analogous to ground state quantum phase transitions have recently been noted to occur among states throughout the excitation spectra of certain many-body models. These ex…
Theoretical analysis of the implementation of a quantum phase gate with neutral atoms on atom chips
E. Charron, M. A. Cirone, A. Negretti +2
We present a detailed, realistic analysis of the implementation of a proposal for a quantum phase gate based on atomic vibrational states, specializing it to neutral rubidium atoms…