Process, System, Causality, and Quantum Mechanics, A
... raw materials of thought needed to even conceive of it. The third is not subtle at all: learn to count! We have learned to count beyond ten sheep and even beyond three dimensions, but we still are under a very stifling conceptual limitation in not being able to count beyond the two types of phenomen ...
... raw materials of thought needed to even conceive of it. The third is not subtle at all: learn to count! We have learned to count beyond ten sheep and even beyond three dimensions, but we still are under a very stifling conceptual limitation in not being able to count beyond the two types of phenomen ...
Dealing with ignorance: universal discrimination, learning and quantum correlations Gael Sentís Herrera
... Discriminating the state of a quantum system among a number of options is one of the most fundamental operations in quantum information theory. A primal feature of quantum theory is that, when two possible quantum states are nonorthogonal, no conceivable measurement of the system can determine its s ...
... Discriminating the state of a quantum system among a number of options is one of the most fundamental operations in quantum information theory. A primal feature of quantum theory is that, when two possible quantum states are nonorthogonal, no conceivable measurement of the system can determine its s ...
Electrically controllable g tensors in quantum dot
... individual spin qubits by their own electric gate5 which allows fast changes of the spin splitting, quantum gate operations, and a tuning of the spin storage time.3 In any case, progress in this field requires a detailed understanding of the mechanisms that allow one to modify the spin-related elect ...
... individual spin qubits by their own electric gate5 which allows fast changes of the spin splitting, quantum gate operations, and a tuning of the spin storage time.3 In any case, progress in this field requires a detailed understanding of the mechanisms that allow one to modify the spin-related elect ...
Lecture Notes for Physics 229: Quantum Information and Computation
... up your hard disk). These properties of quantum information are important, but the really deep way in which quantum information di ers from classical information emerged from the work of John Bell (1964), who showed that the predictions of quantum mechanics cannot be reproduced by any local hidden v ...
... up your hard disk). These properties of quantum information are important, but the really deep way in which quantum information di ers from classical information emerged from the work of John Bell (1964), who showed that the predictions of quantum mechanics cannot be reproduced by any local hidden v ...
Factorized S-Matrices in Two Dimensions as the Exact
... In Eq. (2.6) SR and S, are two-particle S-matrix elements corresponding to backward scattering (reflection) and forward scattering (transition). It is convenient to picture the situation as the scattering of the N-dimensional plane wave in the system of semipenetrable hypersurfaces xi = .‘cj (for an ...
... In Eq. (2.6) SR and S, are two-particle S-matrix elements corresponding to backward scattering (reflection) and forward scattering (transition). It is convenient to picture the situation as the scattering of the N-dimensional plane wave in the system of semipenetrable hypersurfaces xi = .‘cj (for an ...
Post-quantum Security of the CBC, CFB, OFB, CTR
... 2 . Thus, all we need to show is that replacing one block of the challenge ciphertext by randomness leads to a negligible change in the advantage of the adversary. The situation is depicted in Figure 1 (b). – Say we want to show that c2 = H(m2 ⊕ c1 ) is indistinguishable from random (the situation i ...
... 2 . Thus, all we need to show is that replacing one block of the challenge ciphertext by randomness leads to a negligible change in the advantage of the adversary. The situation is depicted in Figure 1 (b). – Say we want to show that c2 = H(m2 ⊕ c1 ) is indistinguishable from random (the situation i ...
Multi-party Quantum Computation Adam Smith
... The output of the circuit is broken in n components H1 ⊗ . . . ⊗ Hn such that Pi receives the output Hi . Some components Hi may be empty. Note that the inputs to this protocol are arbitrary quantum states—the player providing an input need only have it in his possession, he does not need to know a ...
... The output of the circuit is broken in n components H1 ⊗ . . . ⊗ Hn such that Pi receives the output Hi . Some components Hi may be empty. Note that the inputs to this protocol are arbitrary quantum states—the player providing an input need only have it in his possession, he does not need to know a ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).