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Propensities in Quantum Mechanics - Philsci
Propensities in Quantum Mechanics - Philsci

... By contrast Margenau proposed a “third-way” interpretation of quantum mechanics that treads an intermediate course, whereby the probabilities are given an objective reading, and they are understood as describing tendencies – more precisely: the tendencies of latent observables to take on different v ...
Science Journals — AAAS
Science Journals — AAAS

... are available. Processing circuits to realize these applications are built up from logic gates that harness quantum effects such as superposition and entanglement. At present, even small-scale and medium-scale quantum computer circuits are hard to realize due to the need to sufficiently control enou ...
x - UW Canvas
x - UW Canvas

... based on Bohr's concept of complementarity, which states that a physical phenomenon may manifest itself in two different ‘complementary' ways depending on the experiment set up to investigate it. Thus light, for example, could appear sometimes as a wave and sometimes as a particle. Although mutually ...
(4)
(4)

... forms of the equilibrium time correlation functions appearing in quantum-classical systems. Mixed quantum-classical dynamics and the associated correlation functions present differences from their full quantum analogs: Identities among quantum correlation functions hold only approximately in the qua ...
Local density of states in quantum Hall systems with a smooth
Local density of states in quantum Hall systems with a smooth

... question of origin of irreversibility and dissipation (crucial for transport) We are in a nonperturbative regime at high magnetic fields (kinetic energy frozen + degeneracy of Landau levels) ...
One Complexity Theorist`s View of Quantum Computing
One Complexity Theorist`s View of Quantum Computing

... class of efficiently quantum computable problems. Does BQP contain NP-complete problems like graph 3-colorability? What is the relationship between BQP and other more traditional complexity classes like the polynomial-time hierarchy? These questions are well-suited for computational complexity theor ...
Quantum Connections
Quantum Connections



... dencies on the ring radius become almost horizontal and the levels turn into degenerated with respect to spin orientations. Similar dependencies of the two electron energies on the distance between vertically coupled one-dimensional rings are presented in Fig. 2 for ring radii 1a0 ∗ and 5a0 ∗. One c ...
Compact dimensions
Compact dimensions

... ADD Solution to the Hierarchy problem: 1. All known experiments/observations are done on the D3 brane and do not sense the extra dimensions until the energy scale of the experiment reaches the bulk scale  (string tension)-1 (= TeV?) 2. Gravity propagates in all the 3+d spatial dimensions, includin ...
Quantum channels and their capacities: An introduction
Quantum channels and their capacities: An introduction

Topological Quantum Computing - Quantum Optics Group at ETH
Topological Quantum Computing - Quantum Optics Group at ETH

New Features of the Relativistic Particle Scattering
New Features of the Relativistic Particle Scattering

... but for e 6= 1 the trajectories are not the usual conic curves, only somewhat similar to them. In what follows we will consider the case e > 1 only, corresponding to particle scattering. The bound states were considered by Arnold Sommerfeld a long time ago. The energy in this case is expressed from ...
e3010012
e3010012

... scales), we can begin to see the corrections to the fundamental constants. We have now an understanding as to why one has an effective Planck constant that can vary with energy once we approach scales comparable to the Planck scale. Exactly the same thing happens when we approach the speed of light: ...
Non-Abelian String-Net Ladders Marc Daniel Schulz, S´ebastien Dusuel, and Julien Vidal
Non-Abelian String-Net Ladders Marc Daniel Schulz, S´ebastien Dusuel, and Julien Vidal

... triggered much attention over the last decades in different domains (see Ref. [1] for a review). In two dimensions, these phases host exotic excitations known as anyons [2] whose experimental observation remains one of the important challenges in condensed matter physics. Anyons are one of the key i ...
PHYS4210 Electromagnetic Theory Quiz #1 31 Jan 2011
PHYS4210 Electromagnetic Theory Quiz #1 31 Jan 2011

... cylindrical coordinates takes the general form ∞ h X ...
Composite systems and their representation in quantum and
Composite systems and their representation in quantum and

... composite system as predicted by a particular physical theory; secondly, the study of what this physical theory predicts for the relationships these subsystems can have to the composite system they are a part of; and, thirdly, the comparison of different physical theories with respect to these two a ...
Factoring 51 and 85 with 8 qubits
Factoring 51 and 85 with 8 qubits

... presented here should be considered as such. In our opinion a genuine implementation should use no knowledge of the value of the order r—including whether or not it is a power of two—because the objective of the quantum stage of the algorithm is to calculate r. Therefore we do not regard the factori ...
Quantum information theory: Results and open
Quantum information theory: Results and open

... The discipline of information theory was founded by Claude Shannon in a truly remarkable paper [28] which laid down the foundations of the subject. We begin with a quote from this paper which is an excellent summary of the main concern of information theory: The fundamental problem of communication ...
PPT
PPT

... Introduction to CSS codes CSS codes (named after Calderbank, Shor, and Steane) are quantum error correcting codes that are constructed from classical error-correcting codes with certain properties A classical linear code is one whose codewords (a subset of {0,1}n) constitute a vector space In other ...
Mass-Energy equivalence, Annihilation, Two
Mass-Energy equivalence, Annihilation, Two

The Logic of Experimental Tests, Particularly of Everettian Quantum
The Logic of Experimental Tests, Particularly of Everettian Quantum

... values’, of what it means for a proposed experiment to be expected to have a result x under an explanatory theory T. It means that if the experiment were performed and did not result in x, T would become (more) problematic. Expectation is thus defined in terms of problems, and problems in terms of e ...
Irreversibility and the Arrow of Time in a Quenched
Irreversibility and the Arrow of Time in a Quenched

... Equation (3) characterizes the positive and negative fluctuations of the quantum work W along single realizations. It holds for any driving protocol, even beyond the linear response regime, and is a generalization of the second law to which it reduces on average, hΣi ¼ βðhWi − ΔFÞ ≥ 0. We experiment ...
A Brief Review on Quantum Bit Commitment
A Brief Review on Quantum Bit Commitment

... Bit commitment is a building block for several cryptographic primitives, including coin tossing [4, 12, 34], zero-knowledge proofs [7, 23], oblivious transfer [26, 15] and secure two-party computation [27]. In terms of real-world applications it will be useful in a near future. High-speed trading st ...
Quantum Fluctuations of Mass for a Mirror in Vacuum
Quantum Fluctuations of Mass for a Mirror in Vacuum

... be neglected (h̄ω ≪< m >). For low frequencies (smaller than the reflection cut-off Ω), mass is practically constant (15), and equation of motion (19) is well approximated by the Newton law. Then, linear response formalism provides a consistent treatment of quantum fluctations of field and scatterer ...
ZAMPONI Part B2 AQUAMAN
ZAMPONI Part B2 AQUAMAN

... perturbation theory. These results should also be relevant in connection with experiments on disordered cold atomic systems, in the experimental quest for a Bose glass phase. (iii) Superfluidity and superconductivity in disordered systems: Many aspects of superfluidity in a disordered environment ar ...
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History of quantum field theory

In particle physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late 1920s. Major advances in the theory were made in the 1950s, and led to the introduction of quantum electrodynamics (QED). QED was so successful and ""natural"" that efforts were made to use the same basic concepts for the other forces of nature. These efforts were successful in the application of gauge theory to the strong nuclear force and weak nuclear force, producing the modern standard model of particle physics. Efforts to describe gravity using the same techniques have, to date, failed. The study of quantum field theory is alive and flourishing, as are applications of this method to many physical problems. It remains one of the most vital areas of theoretical physics today, providing a common language to many branches of physics.
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