Entanglement and Quantum Cryptography
... 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 ...
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 ...
Resource cost results for one-way entanglement
... Entanglement distillation is in some sense a task subaltern to quantum state merging, since entanglement distillation protocols are readily derived from quantum state merging protocols.14 In this task, a given bipartite quantum source has to be transformed into shared maximal entanglement by LOCC in ...
... Entanglement distillation is in some sense a task subaltern to quantum state merging, since entanglement distillation protocols are readily derived from quantum state merging protocols.14 In this task, a given bipartite quantum source has to be transformed into shared maximal entanglement by LOCC in ...
Consciousness in the universe A review of the ‘Orch OR’ theory ScienceDirect
... [21], and also propagate through brain regions as synchronized zones [22]. Does precise synchrony require electrical synapses (‘gap junctions’) and/or quantum entanglement? Does synchrony reflect discrete, unified conscious moments? ‘Non-computability’ and causal agency As shown by Gödel’s theorem, ...
... [21], and also propagate through brain regions as synchronized zones [22]. Does precise synchrony require electrical synapses (‘gap junctions’) and/or quantum entanglement? Does synchrony reflect discrete, unified conscious moments? ‘Non-computability’ and causal agency As shown by Gödel’s theorem, ...
Embedding Quantum Simulators Roberto Di Candia
... mapped onto an enlarged Hilbert space in a nontrivial way. Via this embedding, we are able to retrieve, by measuring few observables, quantities that generally require full tomography in order to be evaluated. Moreover, we pay a special attention to the experimental feasibility, defining mappings wh ...
... mapped onto an enlarged Hilbert space in a nontrivial way. Via this embedding, we are able to retrieve, by measuring few observables, quantities that generally require full tomography in order to be evaluated. Moreover, we pay a special attention to the experimental feasibility, defining mappings wh ...
On quantum obfuscation - University of Maryland Institute for
... of obfuscation was taken by Goldwasser and Rothblum; they defined indistinguishability obfuscation and best-possible obfuscation [25]. Both of these definitions alter the obfuscation condition, while leaving the functional-equivalence and polynomial-slowdown conditions unchanged. Under indistinguish ...
... of obfuscation was taken by Goldwasser and Rothblum; they defined indistinguishability obfuscation and best-possible obfuscation [25]. Both of these definitions alter the obfuscation condition, while leaving the functional-equivalence and polynomial-slowdown conditions unchanged. Under indistinguish ...
Quantum walk search on satisfiability problems random
... Quantum computing offers a physically based model for computation that may be fundamentally more powerful than the computational model used for computers today. Originally suggested by theoretical physicists Richard Feynman and David Deutsch in the 1980's, quantum computing remained little more than ...
... Quantum computing offers a physically based model for computation that may be fundamentally more powerful than the computational model used for computers today. Originally suggested by theoretical physicists Richard Feynman and David Deutsch in the 1980's, quantum computing remained little more than ...
Resonances, dissipation and decoherence in exotic and artificial atoms
... been only a few efforts to circumvent this problem by choosing a finite confinement [43, 45–49], yet the consideration of such processes, like photo- and autoionization, may open for new applications of quantum dots. For example, as argued in Ref. [49], they can be used as efficient photodetectors s ...
... been only a few efforts to circumvent this problem by choosing a finite confinement [43, 45–49], yet the consideration of such processes, like photo- and autoionization, may open for new applications of quantum dots. For example, as argued in Ref. [49], they can be used as efficient photodetectors s ...
Coherent and incoherent scattering in the resonance fluorescence
... molecule is presented. The interference between the excitation light and coherently scattered radiation can be influenced by changing amplitude and phase of the involved fields using polarization optics. This method enables an absolute measurement of the coherent scattering from a two-level system a ...
... molecule is presented. The interference between the excitation light and coherently scattered radiation can be influenced by changing amplitude and phase of the involved fields using polarization optics. This method enables an absolute measurement of the coherent scattering from a two-level system a ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... especially when it uses quantum cryptography in a network system where it was reported by Amiri et al [2-3]. Quantum keys can form requires information which provides the perfect communication security [4]. Amiri et al. showed that quantum security could be performed via the optical-wired and wirele ...
... especially when it uses quantum cryptography in a network system where it was reported by Amiri et al [2-3]. Quantum keys can form requires information which provides the perfect communication security [4]. Amiri et al. showed that quantum security could be performed via the optical-wired and wirele ...
Programmable architecture for quantum computing Jialin Chen, Lingli Wang, Edoardo Charbon,
... Quantum computers could outperform their classical counterparts when solving many fundamental and complex problems such as integer factorization [1], database search [2], global binary optimization [3], linear equation solving [4], and so on [5]. In a quantum computer, these problems are solved by u ...
... Quantum computers could outperform their classical counterparts when solving many fundamental and complex problems such as integer factorization [1], database search [2], global binary optimization [3], linear equation solving [4], and so on [5]. In a quantum computer, these problems are solved by u ...
Superposition, Entanglement, and Raising Schrödinger’s Cat Nobel Lecture, December 8, 2012
... is achieved in many laboratories throughout the world. To give proper recognition to all of these works would be a daunting task; therefore, I will restrict these notes to experiments on quantum control of internal and external states of trapped atomic ions. The precise manipulation of any system re ...
... is achieved in many laboratories throughout the world. To give proper recognition to all of these works would be a daunting task; therefore, I will restrict these notes to experiments on quantum control of internal and external states of trapped atomic ions. The precise manipulation of any system re ...
Introduction to Quantum Information
... If we encoded each of the k distinct symbols as a distinct binary number, i.e., as a distinct string of 0’s and 1’s, we would need strings composed of log k bits to represent each symbol (2log k = k). Shannon’s analysis shows that messages produced by a stochastic source can be compressed, in the se ...
... If we encoded each of the k distinct symbols as a distinct binary number, i.e., as a distinct string of 0’s and 1’s, we would need strings composed of log k bits to represent each symbol (2log k = k). Shannon’s analysis shows that messages produced by a stochastic source can be compressed, in the se ...
Here - Fifth Quantum Thermodynamics Conference
... Abstract: Recent years have seen an enormously revived interest in the study of thermodynamic notions in the quantum regime. This applies both to the study of thermal machines in the quantum regime, as well as to questions of equilibration and thermalisation of interacting quantum many-body systems ...
... Abstract: Recent years have seen an enormously revived interest in the study of thermodynamic notions in the quantum regime. This applies both to the study of thermal machines in the quantum regime, as well as to questions of equilibration and thermalisation of interacting quantum many-body systems ...
Interacting Cold Rydberg Atoms: a Toy Many-Body
... This first demonstration was achieved using atoms at room temperature. When laser cooled and trapped atomic samples became available, the study of interacting Rydberg gases was facilitated. For these samples, with temperature lower than 100 µK, the interaction energy between two Rydberg atoms overco ...
... This first demonstration was achieved using atoms at room temperature. When laser cooled and trapped atomic samples became available, the study of interacting Rydberg gases was facilitated. For these samples, with temperature lower than 100 µK, the interaction energy between two Rydberg atoms overco ...
THE TRIANGLE INEQUALITY AND THE DUAL GROMOV
... no known proof that the quantum proximity satisfies a form of the triangle inequality and it remains unclear whether it actually does, though it seems unlikely. The root of this difficulty is that the quotient of a Leibniz seminorm is not always Leibniz [1], thus preventing the application of the me ...
... no known proof that the quantum proximity satisfies a form of the triangle inequality and it remains unclear whether it actually does, though it seems unlikely. The root of this difficulty is that the quotient of a Leibniz seminorm is not always Leibniz [1], thus preventing the application of the me ...
