Entanglement Witnesses
... • State acts as teleportation channel fidelity exceeds classical value (e.g., 2/3 in 2-d) ...
... • State acts as teleportation channel fidelity exceeds classical value (e.g., 2/3 in 2-d) ...
Towards a Tight Finite Key Analysis for BB84
... either X or Z, chosen at random. The X bits will be used to extract a key, while the Z are used to check security. She sends the qubit over a public channel to Bob, while the eavesdropper, Eve, may interfere as she wishes. Bob measures the system randomly either in the X or Z basis. Alice and Bob si ...
... either X or Z, chosen at random. The X bits will be used to extract a key, while the Z are used to check security. She sends the qubit over a public channel to Bob, while the eavesdropper, Eve, may interfere as she wishes. Bob measures the system randomly either in the X or Z basis. Alice and Bob si ...
How “Quantum” is the D-Wave Machine?
... also claimed based on extensive experiments that the D-Wave machine exhibits large-scale quantum behavior. While falling far short of the existence of a working quantum computer, this conclusion is nonetheless very exciting, since it suggests that it might be possible to create large-scale entangle ...
... also claimed based on extensive experiments that the D-Wave machine exhibits large-scale quantum behavior. While falling far short of the existence of a working quantum computer, this conclusion is nonetheless very exciting, since it suggests that it might be possible to create large-scale entangle ...
The Violation of Bell Inequalities in the Macroworld
... quantum theory could not be a complete theory but should be supplemented by additional variables. These additional variables were to restore to the theory causality and locality. In this note that idea will be formulated mathematically and shown to be incompatible with the statistical predictions of ...
... quantum theory could not be a complete theory but should be supplemented by additional variables. These additional variables were to restore to the theory causality and locality. In this note that idea will be formulated mathematically and shown to be incompatible with the statistical predictions of ...
Heisenberg Uncertainty Principle
... The uncertainty principle may be stated as: If a measurement of position of made with precision x and a simultaneously measurement of momentum is made with precision p, then the product of the uncertainties can not be smaller than the order of . ...
... The uncertainty principle may be stated as: If a measurement of position of made with precision x and a simultaneously measurement of momentum is made with precision p, then the product of the uncertainties can not be smaller than the order of . ...
Development of semi-classical and quantum tools for the
... smaller and faster devices. Therefore, the simulations tools needed to be able, to understand the behavior of emerging electron devices and to improve them, have to be reinvented for each new generation of devices. The International Technology Roadmap for Semiconductors predicts that, in ten years, ...
... smaller and faster devices. Therefore, the simulations tools needed to be able, to understand the behavior of emerging electron devices and to improve them, have to be reinvented for each new generation of devices. The International Technology Roadmap for Semiconductors predicts that, in ten years, ...
Entanglement and Quantum Cryptography Joonwoo Bae Universitat de Barcelona
... applications. The present thesis covers several topics on quantum cryptography, such as the security analysis of quantum channels for key distribution protocols and the study of quantum cloning. First, we introduce a general formalism to characterize the cryptographic properties of quantum channels ...
... applications. The present thesis covers several topics on quantum cryptography, such as the security analysis of quantum channels for key distribution protocols and the study of quantum cloning. First, we introduce a general formalism to characterize the cryptographic properties of quantum channels ...
