Criteria for bipartite state quantum correlations

Postgraduate Thesis uoadl:1327787 5 Read counter

Unit:
Κατεύθυνση Πυρηνική Φυσική και Φυσική Στοιχειωδών Σωματιδίων (ΒΑΣΙΚΗ ΦΥΣΙΚΗ)
Library of the School of Science
Deposit date:
2017-02-10
Year:
2017
Author:
Lyris Ioannis
Supervisors info:
Αλέξανδρος Καρανίκας (κύριος επιβλέπων), Αναπληρωτής καθηγητής Τμήματος Φυσικής
Φώτιος Διάκονος, Αναπληρωτής καθηγητής Τμήματος Φυσικής
Ξάνθος Μαϊντάς, Επίκουρος καθηγητής Τμήματος Φυσικής
Original Title:
Κριτήρια των κβαντικών συσχετισμών για διμερείς καταστάσεις
Languages:
Greek
Translated title:
Criteria for bipartite state quantum correlations
Summary:
In the presented thesis we make a detailed review on the nature of quantum correlations, and especially of entanglement, in the way they manifest in arbitrary bipartite states. In the first part, we construct appropriate functions as measures of entanglement, while we study in detail one of them, namely the Concurrence, which emerges from the study of the Von-Neumann entropy. Later on, we define Quantum Discord, which is constructed from the redefining of the conditional probability for quantum systems, and we study its properties. On the last part, to study the way Concurrence and Quantum Discord behave, we apply our results on a bipartite system of two correlated two-leveled atoms bathed in an electromagnetic cavity, for which system the interaction is described by the Hamiltonian of the Jaynes-Cummings model.
Main subject category:
Science
Keywords:
entanglement, entropy, quantum discord, concurrence
Index:
Yes
Number of index pages:
2
Contains images:
No
Number of references:
15
Number of pages:
70
Κριτήρια των κβαντικών συσχετισμών.pdf (670 KB) Open in new window