Models of wave-function collapse
... Thus the status of probabilities in quantum theory is absolutely unique, and besides explaining the absence of macroscopic superpositions one must also explain why during a measurement probabilities arise, in violation of deterministic linear superposition, and the quantum system is driven to one or ...
... Thus the status of probabilities in quantum theory is absolutely unique, and besides explaining the absence of macroscopic superpositions one must also explain why during a measurement probabilities arise, in violation of deterministic linear superposition, and the quantum system is driven to one or ...
INCT_IQ_ENG_1 - Instituto de Física / UFRJ
... Revolution´´, where quantum properties play an essential. Even though most information processing devices depend on the laws of Quantum Mechanics (like in a transistor), the information in itself is of a classical nature. Here we are referring to the usual classical bits of information, which are pr ...
... Revolution´´, where quantum properties play an essential. Even though most information processing devices depend on the laws of Quantum Mechanics (like in a transistor), the information in itself is of a classical nature. Here we are referring to the usual classical bits of information, which are pr ...
Thermodynamics of van der Waals Fluids with Quantum Statistics
... unstable. Thus, in the van der Waals fluid with Bose–Einstain’s condensate, one expects the appearance of the two separated phases. The above discussion is not enough to conclude whether the two, wellseparated phases will be formed in the system, or one of the phases will be dispersed in the form of ...
... unstable. Thus, in the van der Waals fluid with Bose–Einstain’s condensate, one expects the appearance of the two separated phases. The above discussion is not enough to conclude whether the two, wellseparated phases will be formed in the system, or one of the phases will be dispersed in the form of ...
Stability of local quantum dissipative systems
... Let H be a finite-dimensional Hilbert space. A dissipative quantum system is given by a 1-parameter continuous semigroup (Tt )t>0 of completely positive, trace preserving (CPTP) maps (also called quantum channels): Tt : B(H) → B(H) ...
... Let H be a finite-dimensional Hilbert space. A dissipative quantum system is given by a 1-parameter continuous semigroup (Tt )t>0 of completely positive, trace preserving (CPTP) maps (also called quantum channels): Tt : B(H) → B(H) ...
Change Without Time - Publikationsserver der Universität Regensburg
... system can act as a carrier of information on time between the (classical) preparation and measurement devices, or, to put it differently, the quantum system always shares the same time with the measurement apparatus, even without any intentional measurement of time being performed. This means, that ...
... system can act as a carrier of information on time between the (classical) preparation and measurement devices, or, to put it differently, the quantum system always shares the same time with the measurement apparatus, even without any intentional measurement of time being performed. This means, that ...
Why is there an invariant speed c?
... A particle cannot move faster than c. A particle cannot move slower than c either? If a particle moves with a speed smaller than c LP / TP , then it will move less than LP during TP . This also contradicts the discreteness of spacetime. LP is the minimum space interval in discrete space and time ...
... A particle cannot move faster than c. A particle cannot move slower than c either? If a particle moves with a speed smaller than c LP / TP , then it will move less than LP during TP . This also contradicts the discreteness of spacetime. LP is the minimum space interval in discrete space and time ...
Holographic Entanglement Entropy - Crete Center for Theoretical
... AdS/CFT is a very powerful method to understand strongly coupled condensed matter systems. Especially, the calculations become most tractable in the strong coupling and large N limit of gauge theories. In this limit, the AdS side is given by a classical gravity and we can naturally expect universal ...
... AdS/CFT is a very powerful method to understand strongly coupled condensed matter systems. Especially, the calculations become most tractable in the strong coupling and large N limit of gauge theories. In this limit, the AdS side is given by a classical gravity and we can naturally expect universal ...
Dyson equation for diffractive scattering
... D / a P Ⰶ 1 cannot be reached, no matter how small D 共or large k兲 is. In other words, the quantum properties of the leads influence also the semiclassical dynamics in the interior. This observation is the starting point for diffractive corrections such as the Kirchhoff diffraction 关7兴 or Fraunhofe ...
... D / a P Ⰶ 1 cannot be reached, no matter how small D 共or large k兲 is. In other words, the quantum properties of the leads influence also the semiclassical dynamics in the interior. This observation is the starting point for diffractive corrections such as the Kirchhoff diffraction 关7兴 or Fraunhofe ...
Particle Spin and the Stern
... The point to be made here is that the spinning object is extended in space, i.e. the spinning sphere example has a non-zero radius. If we try to extend the idea to a point particle by taking the limit of a → 0 we immediately see that the spin angular momentum must vanish unless ω is allowed to be in ...
... The point to be made here is that the spinning object is extended in space, i.e. the spinning sphere example has a non-zero radius. If we try to extend the idea to a point particle by taking the limit of a → 0 we immediately see that the spin angular momentum must vanish unless ω is allowed to be in ...
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).