Some Aspects of Islamic Cosmology and the current state of
... Idealist philosophy believes that the mind exists, and that our sense of the external world (physical reality) is simply a construction of the mind. Given that all our knowledge is in fact a creation of the mind (imagination) it has been difficult to refute this - to get from our ideas of things to ...
... Idealist philosophy believes that the mind exists, and that our sense of the external world (physical reality) is simply a construction of the mind. Given that all our knowledge is in fact a creation of the mind (imagination) it has been difficult to refute this - to get from our ideas of things to ...
Perspective Using classical mechanics in a quantum framework
... ``classically forbidden'' processes, i.e., those for which there are no purely classical contributions. In these more general situations it has also been found that all quantum eects (also including symmetry-based selection rules and quantization of bounded motion itself) are ultimately a result of ...
... ``classically forbidden'' processes, i.e., those for which there are no purely classical contributions. In these more general situations it has also been found that all quantum eects (also including symmetry-based selection rules and quantization of bounded motion itself) are ultimately a result of ...
ACAT2005_Severyanov
... Using ideas published in [1] we have written a C# program tool enabling us to assemble an arbitrary quantum circuit in a particular gate basis and to construct the corresponding set of polynomial equations over Z2. The number of solutions of the set defines the matrix elements of the circuit and th ...
... Using ideas published in [1] we have written a C# program tool enabling us to assemble an arbitrary quantum circuit in a particular gate basis and to construct the corresponding set of polynomial equations over Z2. The number of solutions of the set defines the matrix elements of the circuit and th ...
Spontaneous four-wave mixing in microring resonators
... a stimulated (classical) nonlinear optical process, have recently attracted interest as potential integrated or “onchip” sources of quantum correlated photon pairs [1–9]. These include structured media such as microtorroids, photonic crystal cavities, and microring resonators. Yet, while microring r ...
... a stimulated (classical) nonlinear optical process, have recently attracted interest as potential integrated or “onchip” sources of quantum correlated photon pairs [1–9]. These include structured media such as microtorroids, photonic crystal cavities, and microring resonators. Yet, while microring r ...
NP-complete Problems and Physical Reality
... could solve NP-complete and even harder problems in polynomial time ...
... could solve NP-complete and even harder problems in polynomial time ...
Random Walks on Infinite Free Products and Infinite Algebraic Systems of Generating Functions
... A security guard patrols an infinite hallway with an infinite sequence of doors, all of which are initially open. He carries with him a suitcase containing infinitely many keylocks, each with a color κ ∈ N , the colors occurring with relative frequencies {pκ }κ∈N . At each step of his patrol he selects ...
... A security guard patrols an infinite hallway with an infinite sequence of doors, all of which are initially open. He carries with him a suitcase containing infinitely many keylocks, each with a color κ ∈ N , the colors occurring with relative frequencies {pκ }κ∈N . At each step of his patrol he selects ...
Reverse Causality and the Transactional Interpretation
... The simple answer is “No!”. It is the formalism of quantum mechanics that makes all of the testable predictions. As long as an interpretation like the TI is consistent with the formalism, it will make the same predictions as any other valid interpretation, and no experimental tests are possible. ...
... The simple answer is “No!”. It is the formalism of quantum mechanics that makes all of the testable predictions. As long as an interpretation like the TI is consistent with the formalism, it will make the same predictions as any other valid interpretation, and no experimental tests are possible. ...
Photon Wave Mechanics: A De Broglie-Bohm Approach
... scribed by a complex-valued state function S satisfying the Schrodinger equation. The probabilistic interpretation of it was first suggested by Born [2] and, in the light of Heisenberg uncertainty principle, is a pillar of quantum mechanics itself. All the known experiments show that the probabilist ...
... scribed by a complex-valued state function S satisfying the Schrodinger equation. The probabilistic interpretation of it was first suggested by Born [2] and, in the light of Heisenberg uncertainty principle, is a pillar of quantum mechanics itself. All the known experiments show that the probabilist ...
ppt - Pavel Stránský
... Fourier transform calculates an “overlap” between the signal and a given basis ...
... Fourier transform calculates an “overlap” between the signal and a given basis ...
Document
... “ For the atoms of ultracold gases in optical lattices, Feshbach resonances can be used to increase the collisional interactions and thereby speed up gate operations. However, the ‘unitarity limit’ in scattering theory does not allow the collisional interaction energy to be increased beyond the on-s ...
... “ For the atoms of ultracold gases in optical lattices, Feshbach resonances can be used to increase the collisional interactions and thereby speed up gate operations. However, the ‘unitarity limit’ in scattering theory does not allow the collisional interaction energy to be increased beyond the on-s ...
Quantum Computation and Quantum Information – Lecture 3
... Quantum Teleportation Circuit (5) If Alice Then Bob’s obtains qubit is in state ...
... Quantum Teleportation Circuit (5) If Alice Then Bob’s obtains qubit is in state ...
here - Nick Papanikolaou
... Quantum Teleportation Circuit (5) If Alice Then Bob’s obtains qubit is in state ...
... Quantum Teleportation Circuit (5) If Alice Then Bob’s obtains qubit is in state ...
Quantum key distribution
Quantum key distribution (QKD) uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages. It is often incorrectly called quantum cryptography, as it is the most well known example of the group of quantum cryptographic tasks.An important and unique property of quantum key distribution is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental aspect of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication system can be implemented which detects eavesdropping. If the level of eavesdropping is below a certain threshold, a key can be produced that is guaranteed to be secure (i.e. the eavesdropper has no information about it), otherwise no secure key is possible and communication is aborted.The security of encryption that uses quantum key distribution relies on the foundations of quantum mechanics, in contrast to traditional public key cryptography which relies on the computational difficulty of certain mathematical functions, and cannot provide any indication of eavesdropping at any point in the communication process, or any mathematical proof as to the actual complexity of reversing the one-way functions used. QKD has provable security based on information theory, and forward secrecy.Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with any chosen encryption algorithm to encrypt (and decrypt) a message, which can then be transmitted over a standard communication channel. The algorithm most commonly associated with QKD is the one-time pad, as it is provably secure when used with a secret, random key. In real world situations, it is often also used with encryption using symmetric key algorithms like the Advanced Encryption Standard algorithm. In the case of QKD this comparison is based on the assumption of perfect single-photon sources and detectors, that cannot be easily implemented.