Quantum cryptography
... IV054 CHAPTER 13: Quantum cryptography Quantum cryptography is cryptography of 21st century. An important new feature of quantum cryptography is that security of quantum cryptographic protocols is based on the laws of nature – of quantum physics, and not on the unproven assumptions of computational ...
... IV054 CHAPTER 13: Quantum cryptography Quantum cryptography is cryptography of 21st century. An important new feature of quantum cryptography is that security of quantum cryptographic protocols is based on the laws of nature – of quantum physics, and not on the unproven assumptions of computational ...
The capacity of the noisy quantum channel
... classically continuous variables such as energy, angular momentum and charge come in discrete units called quanta. This discrete character of quantum-mechanical systems such as photons, atoms, and spins allows them to register ordinary digital information. A leftcircularly polarized photon can encod ...
... classically continuous variables such as energy, angular momentum and charge come in discrete units called quanta. This discrete character of quantum-mechanical systems such as photons, atoms, and spins allows them to register ordinary digital information. A leftcircularly polarized photon can encod ...
What is Quantum Thermodynamics?
... on the validity of their end results. On the other hand, the need remains of a coherent physical theory capable of encompassing these same results within a sound unified unambiguous conceptual framework. Of course, the vast majority of physicists would argue that there is no such need because there i ...
... on the validity of their end results. On the other hand, the need remains of a coherent physical theory capable of encompassing these same results within a sound unified unambiguous conceptual framework. Of course, the vast majority of physicists would argue that there is no such need because there i ...
How Quantum Theory Helps us Explain
... a novel kind of explanation. Nevertheless, explanations of phenomena using quantum theory may be seen to meet two very general conditions met by many, if not all, good explanations in physics. (i) They show that the phenomenon to be explained was to be expected and (ii) they say what it depends on. ...
... a novel kind of explanation. Nevertheless, explanations of phenomena using quantum theory may be seen to meet two very general conditions met by many, if not all, good explanations in physics. (i) They show that the phenomenon to be explained was to be expected and (ii) they say what it depends on. ...
Quantum Computing with Quantum Dots
... It is important to note that long pulses around 5 ps were used to avoid exciting multiple excitons under the same aperture. However, smaller apertures or different samples with more isolated QDs can be used to replace the long pulses with shorter ones. It is known that short dephasing times and long ...
... It is important to note that long pulses around 5 ps were used to avoid exciting multiple excitons under the same aperture. However, smaller apertures or different samples with more isolated QDs can be used to replace the long pulses with shorter ones. It is known that short dephasing times and long ...
Cryptographic distinguishability measures for quantum
... physically realizable measurement can be described by a POVM. Moreover, for every POVM, there is in principle a physical procedure with which to carry out the associated measurement. Therefore, we can denote the set of all possible measurements, or equivalently the set of all POVM’s, as Warning: It ...
... physically realizable measurement can be described by a POVM. Moreover, for every POVM, there is in principle a physical procedure with which to carry out the associated measurement. Therefore, we can denote the set of all possible measurements, or equivalently the set of all POVM’s, as Warning: It ...
Quantum Field Theory - Uwe
... constant of Nature that is indeed non-zero. This has consequences not only for mechanics but for all of physics. In particular, Maxwell’s theory of classical electrodynamics also needs to be modified by incorporating the principles of quantum physics. It turned out that this is a rather nontrivial e ...
... constant of Nature that is indeed non-zero. This has consequences not only for mechanics but for all of physics. In particular, Maxwell’s theory of classical electrodynamics also needs to be modified by incorporating the principles of quantum physics. It turned out that this is a rather nontrivial e ...
Phys. Rev. Lett. 98, 070602
... such phases have not, thus far, been seen experimentally outside of the quantum Hall regime. Is this because topological phases are very rare and these models are adiabatically connected only to very small regions of the phase diagrams of real experimental systems? In this Letter, we take a first st ...
... such phases have not, thus far, been seen experimentally outside of the quantum Hall regime. Is this because topological phases are very rare and these models are adiabatically connected only to very small regions of the phase diagrams of real experimental systems? In this Letter, we take a first st ...
