Sökning: "Nonlocality"
Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet Nonlocality.
1. Theoretical studies of lattice- and spin-polarons
Sammanfattning : Theoretical studies of lattice- and spin-polarons are presented in this thesis, where the primary tool is ab-initio electronic structure calculations. The studies are performed with employment of a variety of analytical and computational methods. LÄS MER
2. Experimental Full Network Nonlocality in Bilocal Scenario
Sammanfattning : Efforts in quantum safe communication to realize communication security based on physical properties rather than on computational complexity have led to development of both hardware and protocols for quantum key distribution. Further progress is devoted to realization of quantum secure networks and protocols for handling network security of multiple users. LÄS MER
3. Quantum Resources for Efficient Excitation Energy Transfer in Natural and Artificial Pigment-Protein Molecular Aggregates
Sammanfattning : Recently, long-lasting quantum effects in a number of photosynthetic complexes, which are pigment-protein molecular aggregates (PPMAs), were experimentally verified. These findings created an interest in trying to connect the known highly efficient excitation energy transfer (EET) in these systems to the existence of quantum effects such as quantum coherence and quantum correlations. LÄS MER
4. Quantum technologies for secure communications
Sammanfattning : Quantum technologies promise to revolutionize a variety of fields such as metrology, cryptography or computing, among others. The resources that quantum mechanics offers allow us to design faster optimization algorithms, to improve security in communications, and to measure quantities beyond the grasp of current technology. LÄS MER
5. Theory of van der Waals bonding: from bulk materials to biomolecules
Sammanfattning : Sparse matter is abundant in Nature.It encompasses systems characterized by an intrinsic low density of electrons in sizeable regions, where the van der Waals forces contribute considerably to cohesion.Given the length scale of the problem, a prediction of these materials requires appropriate tools within a quantum-mechanical framework. LÄS MER