Quantum information or quantum coding? - Philsci
... This formalism has received and still receives different interpretations. Some authors conceive Shannon information as a physical magnitude, whereas others consider that the primary meaning of the concept of information is always linked with the notion of knowledge (see discussion in Lombardi, Forti ...
... This formalism has received and still receives different interpretations. Some authors conceive Shannon information as a physical magnitude, whereas others consider that the primary meaning of the concept of information is always linked with the notion of knowledge (see discussion in Lombardi, Forti ...
Composing Quantum Protocols in a Classical Environment
... This notation extends naturally to states that depend on several classical random variables X, Y etc., defining the density matrices ρXY E , ρXY E|E , ρY E|X=x etc. We tend to slightly abuse notation and write ρxY E = ρXE|X=x and ρxY E|E = ρY E|X=x,E , as well as ρxE = trY (ρxY E ) and ρxE|E = trY (ρ ...
... This notation extends naturally to states that depend on several classical random variables X, Y etc., defining the density matrices ρXY E , ρXY E|E , ρY E|X=x etc. We tend to slightly abuse notation and write ρxY E = ρXE|X=x and ρxY E|E = ρY E|X=x,E , as well as ρxE = trY (ρxY E ) and ρxE|E = trY (ρ ...
Classical Cryptographic Protocols in a Quantum World
... were used to analyze a number of unconditionally secure quantum protocols (key exchange [6] and multi-party computation with honest majorities [5]). However, many protocols are not universally composable, and Canetti [11] showed that classical protocols cannot UC-securely realize even basic tasks su ...
... were used to analyze a number of unconditionally secure quantum protocols (key exchange [6] and multi-party computation with honest majorities [5]). However, many protocols are not universally composable, and Canetti [11] showed that classical protocols cannot UC-securely realize even basic tasks su ...
Quantum networks with trapped ions
... phase in a three-dimensional far-tuned optical lattice, longer coherence times up to hundreds of milliseconds have been achieved recently 共Schnorrberger et al., 2009兲. For this ensemble approach, although experiments are primarily based on clouds of neutral atoms, it is conceivable that other ensemb ...
... phase in a three-dimensional far-tuned optical lattice, longer coherence times up to hundreds of milliseconds have been achieved recently 共Schnorrberger et al., 2009兲. For this ensemble approach, although experiments are primarily based on clouds of neutral atoms, it is conceivable that other ensemb ...
Assessing the applicability of quantum corrections to classical
... tum values. This result is not necessarily intuitive because the classical phonon specific heats are always greater than their quantum counterparts and, according to Eq. (10), will tend to increase the classical thermal conductivity over the quantum value. The thermal conductivity, however, is also ...
... tum values. This result is not necessarily intuitive because the classical phonon specific heats are always greater than their quantum counterparts and, according to Eq. (10), will tend to increase the classical thermal conductivity over the quantum value. The thermal conductivity, however, is also ...
On realism and quantum mechanics
... goes back to the birth of the latter; however, the addressed issues and the relevance given to them have changed since then. The debate has shifted from the discussion of the epistemological status of quantum mechanics to specialized topics connected with the so-called EPR paradox [1]: the turning p ...
... goes back to the birth of the latter; however, the addressed issues and the relevance given to them have changed since then. The debate has shifted from the discussion of the epistemological status of quantum mechanics to specialized topics connected with the so-called EPR paradox [1]: the turning p ...
An introduction to Quantum Complexity
... BQP is closed under complement BQP is closed under intersection (and union) ...
... BQP is closed under complement BQP is closed under intersection (and union) ...
Infinite-randomness quantum critical points induced by dissipation
... conventional ground states,19,20 and their quantum phase transitions are governed by conventional critical points.21–24 As in the Ising case, adding Ohmic dissipation hampers the dynamics of O共N兲 symmetric order parameters. Vojta and Schmalian25 showed that the “energy gap” of large locally ordered ...
... conventional ground states,19,20 and their quantum phase transitions are governed by conventional critical points.21–24 As in the Ising case, adding Ohmic dissipation hampers the dynamics of O共N兲 symmetric order parameters. Vojta and Schmalian25 showed that the “energy gap” of large locally ordered ...
Highly doubly excited S states of the helium atom
... We see from (1 1) that for extremely high excitation N -+ 00 of the inner electron we get two collinear configurations with minimum angle (cosO) -+ ( N - l ) / N % + I which corresponds to a configuration with both electrons on the same side of the nucleus (8 % 0", the 'frozen planet states', Richte ...
... We see from (1 1) that for extremely high excitation N -+ 00 of the inner electron we get two collinear configurations with minimum angle (cosO) -+ ( N - l ) / N % + I which corresponds to a configuration with both electrons on the same side of the nucleus (8 % 0", the 'frozen planet states', Richte ...
Complete description of a quantum system at a given time
... Substituting equations (8) and (10) into equation (7) yields, finally, equation ( 5 ) . Note that equation ( 5 ) yields the probability of the result C = c. for the preselected andpostselected ensemble, i.e. only systems which were prepared at time f , in !he state I$,([,)) and were found at time t ...
... Substituting equations (8) and (10) into equation (7) yields, finally, equation ( 5 ) . Note that equation ( 5 ) yields the probability of the result C = c. for the preselected andpostselected ensemble, i.e. only systems which were prepared at time f , in !he state I$,([,)) and were found at time t ...
INTRODUCTION TO QUANTUM CHAOS
... thermodynamic limit in which the number of particles tends to infinity. Another branch is an analysis of what the behaviors of linear wave equation solutions may be in a short wavelength or asymptotic limit. It applies equally well in the contexts of quantum mechanics, acoustics, optics, or other li ...
... thermodynamic limit in which the number of particles tends to infinity. Another branch is an analysis of what the behaviors of linear wave equation solutions may be in a short wavelength or asymptotic limit. It applies equally well in the contexts of quantum mechanics, acoustics, optics, or other li ...
Advantages of Probability Amplitude Over Probability Density in
... Quantum mechanics (QM) is considered the most basic theory of nature. All phenomena including those of the gravitational force are considered to be expressed by a language of QM. However, an essential understanding of the basic nature of QM yet to be realized, and efforts to look for more fundamenta ...
... Quantum mechanics (QM) is considered the most basic theory of nature. All phenomena including those of the gravitational force are considered to be expressed by a language of QM. However, an essential understanding of the basic nature of QM yet to be realized, and efforts to look for more fundamenta ...
