[Article] Quantum discord andclassical correlations in the bond-charge Hubbard model: Quantum phasetransitions, off-diagonal long-range order, and violation of themonogamy property for discord
نویسندگان
چکیده
منابع مشابه
Quantum discord and classical correlations in the bond-charge Hubbard model: Quantum phase transitions, off-diagonal long-range order, and violation of the monogamy property for discord
Michele Allegra,1,2,3 Paolo Giorda,1 and Arianna Montorsi4 1Institute for Scientific Interchange (ISI), Villa Gualino, Viale Settimio Severo 65, I-10133 Torino, Italy 2Dipartimento di Fisica Teorica, Università degli Studi di Torino, I-10125 Torino, Italy 3Dipartimento di Fisica del Politecnico, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy 4Dipartimento di Fisica del Politecnico and CNISM...
متن کاملDynamics of entangled quantum optical system in independent media
We study the dynamics of two three-level atoms interacting with independent bosonic Lorentzian reservoirs at zero temperature. Such systems can be created in far astronomical objects. Quantum mechanical behaviour of these particles can produce detectable effects on the spectroscopic identifications of these objects, if such behaviour remain stable during the interaction with their media. It is ...
متن کاملQuantum Correlations in a Few-Atom Spin-1 Bose-Hubbard Model
We study the thermal quantum correlations and entanglement in spin1 Bose-Hubbard model with two and three particles. While we use negativity to calculate entanglement, more general non-classical correlations are quantified using a new measure based on a necessary and sufficient condition for zero-discord state. We demonstrate that the energy level crossings in the ground state of the system are...
متن کاملQuantum Correlations and Bell Inequality Violation under Decoherence
Quantum Correlations are studied extensively in quantum information domain. Entanglement Measures and Quantum Discord are good examples of these actively studied correlations. Detection of violation in Bell inequalities is also a widely active area in quantum information theory world. In this work, we revisit the problem of analyzing the behavior of quantum correlations and violation of Bell in...
متن کاملBehaviour of Quantum Correlations and Violation of Bell Inequalities in some Noisy Channels
Quantum Correlations are studied extensively in quantum information domain. Entanglement Measures and Quantum Discord are good examples of these actively studied correlations. Detection of violation in Bell inequalities is also a widely active area in quantum information theory world. In this work, we revisit the problem of analyzing the behavior of quantum correlations and violation of Bell in...
متن کامل