Quantum Level Structures and Nonlinear Classical Dynamics
... indefinitely to and fro along the same path. The first point to notice is that Fig. 1a, at E = 2ω1 , shows just two simple periodic orbits, whereas the higher energy plots in Figs. 1b and 1c contain three. Second, the shape of the trajectory in Fig. 1a is dictated by the shapes of the two periodic o ...
... indefinitely to and fro along the same path. The first point to notice is that Fig. 1a, at E = 2ω1 , shows just two simple periodic orbits, whereas the higher energy plots in Figs. 1b and 1c contain three. Second, the shape of the trajectory in Fig. 1a is dictated by the shapes of the two periodic o ...
Parallel Universes Is there a copy of you Not just a staple
... scales, with no coherent structures larger than about 1024 meters. Assuming that this pattern continues, space beyond our observable universe teems with galaxies, stars and planets. Observers living in Level I parallel universes experience the same laws of physics as we do but with different initial ...
... scales, with no coherent structures larger than about 1024 meters. Assuming that this pattern continues, space beyond our observable universe teems with galaxies, stars and planets. Observers living in Level I parallel universes experience the same laws of physics as we do but with different initial ...
Quantum Copy-Protection and Quantum Money
... cards), but in this paper, money and copy-protected software will be more than enough to occupy us. A first, crucial observation is that, if we insist on information-theoretic security (as provided, for example, by quantum key distribution), then we cannot hope for either quantum copy-protection or ...
... cards), but in this paper, money and copy-protected software will be more than enough to occupy us. A first, crucial observation is that, if we insist on information-theoretic security (as provided, for example, by quantum key distribution), then we cannot hope for either quantum copy-protection or ...
Pulsed field ionization of Rydberg atoms
... smaller than the binding energy of the initial state. This situation is in stark contrast to the dynamics in a static electric field where no states are bound, but the only question is, how fast does the electron tunnel and leave the atom? In all of these papers describing kicked Rydberg atoms, the ...
... smaller than the binding energy of the initial state. This situation is in stark contrast to the dynamics in a static electric field where no states are bound, but the only question is, how fast does the electron tunnel and leave the atom? In all of these papers describing kicked Rydberg atoms, the ...
Studies in Composing Hydrogen Atom Wavefunctions
... Music carries meaning on several timescales, from individual timbres and pitches (foreground) to short melodies and rhythms (middle ground) all the way up to the largescale form and structure of a work (background), each engaging distinct perceptual and cognitive processes. Typically, a composer who ...
... Music carries meaning on several timescales, from individual timbres and pitches (foreground) to short melodies and rhythms (middle ground) all the way up to the largescale form and structure of a work (background), each engaging distinct perceptual and cognitive processes. Typically, a composer who ...
Von Neumann`s Impossibility Proof: Mathematics in - Philsci
... Von Neumann’s book “Mathematische Grundlagen der Quantenmechanik” (Mathematical Foundations of Quantum Mechanics)[24], published in 1932, is widely acclaimed as a milestone in the history of quantum mechanics. It is a pioneering work that, among other accomplishments, first introduced Hilbert space ...
... Von Neumann’s book “Mathematische Grundlagen der Quantenmechanik” (Mathematical Foundations of Quantum Mechanics)[24], published in 1932, is widely acclaimed as a milestone in the history of quantum mechanics. It is a pioneering work that, among other accomplishments, first introduced Hilbert space ...
Multipartite entanglement, quantum- error
... a key ingredient in many areas of quantum information theory including quantum key distribution [4], superdense coding [5] and teleportation [6]. However the general problem of how to quantify [1] the level of entanglement in an arbitrary multipartite system remains unresolved. There has been some p ...
... a key ingredient in many areas of quantum information theory including quantum key distribution [4], superdense coding [5] and teleportation [6]. However the general problem of how to quantify [1] the level of entanglement in an arbitrary multipartite system remains unresolved. There has been some p ...
Quantum cryptography
... This means that subsequent measurement of other particle (on another planet) provides the same result as the measurement of the first particle. This indicate that in quantum world non-local influences, correlations, exist. ...
... This means that subsequent measurement of other particle (on another planet) provides the same result as the measurement of the first particle. This indicate that in quantum world non-local influences, correlations, exist. ...
Realization of Bose-Einstein Condensation in dilute gases
... an external potential and cooled to temperatures very near to absolute zero. Under such supercooled conditions, a large fraction of the atoms collapse into the lowest quantum state of the external potential, at which point quantum effects become apparent on a macroscopic scale. When a bosonic system ...
... an external potential and cooled to temperatures very near to absolute zero. Under such supercooled conditions, a large fraction of the atoms collapse into the lowest quantum state of the external potential, at which point quantum effects become apparent on a macroscopic scale. When a bosonic system ...
(2)
... represent the coupled evolution of the quantum system and bath. Typically, the classical degrees of freedom evolve by Newton’s equations of motion on adiabatic energy surfaces; the evolution is interrupted by ‘‘hops’’ to other adiabatic surfaces, after which classical evolution is continued on the n ...
... represent the coupled evolution of the quantum system and bath. Typically, the classical degrees of freedom evolve by Newton’s equations of motion on adiabatic energy surfaces; the evolution is interrupted by ‘‘hops’’ to other adiabatic surfaces, after which classical evolution is continued on the n ...
Fermions coupled to gauge fields .1in with cond
... Can we formulate a tractable effective description of the low-energy physics of a system with a Fermi surface? , but without long-lived quasiparticles? ...
... Can we formulate a tractable effective description of the low-energy physics of a system with a Fermi surface? , but without long-lived quasiparticles? ...
The additivity problem in quantum information theory
... information theory. The corresponding additivity property was conjectured to hold also in the noncommutative case, although so far there is neither a general proof, nor a counterexample; moreover the additivity is no longer “natural” since an analog of the underlying basic fact (1) breaks dramatical ...
... information theory. The corresponding additivity property was conjectured to hold also in the noncommutative case, although so far there is neither a general proof, nor a counterexample; moreover the additivity is no longer “natural” since an analog of the underlying basic fact (1) breaks dramatical ...
2nd workshop Mathematical Challenges of Zero
... and some properties that allow the systematic investigation of the spectral properties of some associated operators. To illustrate these ideas I will apply them to some well-known types of Schrödinger operators. Then, the quasi boundary triple technique will be used to introduce the Dirac operator ...
... and some properties that allow the systematic investigation of the spectral properties of some associated operators. To illustrate these ideas I will apply them to some well-known types of Schrödinger operators. Then, the quasi boundary triple technique will be used to introduce the Dirac operator ...
Phys. Rev. Lett. 108, 100501 - APS Link Manager
... with "LZ ¼ expðcG t0 =@Þ, where c is a modeldependent numerical constant [30,31]. In the case of the dipolar crystal, G 1=L, due to the phononic nature of the excitations [27,28]; this results in an error which scales according to the theoretical optimum given by the LiebRobinson bound for the ...
... with "LZ ¼ expðcG t0 =@Þ, where c is a modeldependent numerical constant [30,31]. In the case of the dipolar crystal, G 1=L, due to the phononic nature of the excitations [27,28]; this results in an error which scales according to the theoretical optimum given by the LiebRobinson bound for the ...
Decoherence and the Transition from Quantum to Classical–Revisited
... A convenient starting point for the discussion of the measurement problem and, more generally, of the emergence of classical behavior from quantum dynamics is the analysis of quantum measurements due to John von Neumann (1932). In contrast to Bohr, who assumed at the outset that the apparatus must b ...
... A convenient starting point for the discussion of the measurement problem and, more generally, of the emergence of classical behavior from quantum dynamics is the analysis of quantum measurements due to John von Neumann (1932). In contrast to Bohr, who assumed at the outset that the apparatus must b ...
PowerPoint-Präsentation
... Laser Field: Much more than a Toy W. Becker1 and D. B. Milosevic1,2 1Max-Born-Institut, 2Faculty ...
... Laser Field: Much more than a Toy W. Becker1 and D. B. Milosevic1,2 1Max-Born-Institut, 2Faculty ...
Computation in a Topological Quantum Field Theory
... group on n elements acts on an ensemble of n identical particles as a symmetry of the composite system; more precisely, the system’s wave function remains unchanged up to a total phase. In this way Unitarity of our physical theories shows the resulting transform of the wave function is an element of ...
... group on n elements acts on an ensemble of n identical particles as a symmetry of the composite system; more precisely, the system’s wave function remains unchanged up to a total phase. In this way Unitarity of our physical theories shows the resulting transform of the wave function is an element of ...
28 Quantum Physics
... • The more precise a measurement of posiGon è the more uncertain the measurement of momentum will be. • The more precise a measurement of momentum è the more uncertain the measurement of the po ...
... • The more precise a measurement of posiGon è the more uncertain the measurement of momentum will be. • The more precise a measurement of momentum è the more uncertain the measurement of the po ...