HOW TO DEAL WITH THE ARROW OF TIME GIUSEPPE VITIELLO
... Dissipative systems have been analyzed in the path integral formalism by Schwinger [6] and by Feynman and Vernon [7] from the point of view of the quantum theory for Brownian motion and are of course a major topic in non-equilibrium statistical mechanics and non-equilibrium Quantum Field Theory (QF ...
... Dissipative systems have been analyzed in the path integral formalism by Schwinger [6] and by Feynman and Vernon [7] from the point of view of the quantum theory for Brownian motion and are of course a major topic in non-equilibrium statistical mechanics and non-equilibrium Quantum Field Theory (QF ...
Highligh in Physics 2005
... the way to the observation of decoherence in progress. This was done by Haroche and coworkers [3], working in cavity quantum electrodynamics, where systems of atoms and photons can be controlled with exquisite accuracy. In the experiment they generated superpositions of two coherent cavity field sta ...
... the way to the observation of decoherence in progress. This was done by Haroche and coworkers [3], working in cavity quantum electrodynamics, where systems of atoms and photons can be controlled with exquisite accuracy. In the experiment they generated superpositions of two coherent cavity field sta ...
Taylor`s experiment (1909)
... In their response (25) Hanbury and Twiss pointed out that although the experimental procedure in both cases was beyond reproach, their critics had missed the essential point that correlation could not be observed in a coincidence counter unless one had an extremely intense source of light of narrow ...
... In their response (25) Hanbury and Twiss pointed out that although the experimental procedure in both cases was beyond reproach, their critics had missed the essential point that correlation could not be observed in a coincidence counter unless one had an extremely intense source of light of narrow ...
Measuring And Manipulating Coherence In Photonic And Atomic
... What makes a computer quantum? If a quantum "bit" is described by two numbers: |> = c0|0> + c 1|1>, then n quantum bits are described by 2n coeff's: |> = c00..0|00..0>+c 00..1|00..1>+...c11..1|11..1>; this is exponentially more information than the 2n coefficients it would take to describe n inde ...
... What makes a computer quantum? If a quantum "bit" is described by two numbers: |> = c0|0> + c 1|1>, then n quantum bits are described by 2n coeff's: |> = c00..0|00..0>+c 00..1|00..1>+...c11..1|11..1>; this is exponentially more information than the 2n coefficients it would take to describe n inde ...
(pdf)
... The second expression is given by solving the variational problem of the first. As we know from classical mechanics, ∂ 2 g > 0 and the Legendre transform is its ...
... The second expression is given by solving the variational problem of the first. As we know from classical mechanics, ∂ 2 g > 0 and the Legendre transform is its ...
Conference version
... More broadly: Is there any partial Boolean function P such that Q(P)=polylog(N) while R(P)>>N? Non-black-box applications of Forrelation? ...
... More broadly: Is there any partial Boolean function P such that Q(P)=polylog(N) while R(P)>>N? Non-black-box applications of Forrelation? ...
Unitarity and Effective Field Theory Results in Quantum Gravity
... We see that we have universality between scalars and photons only for the ‘Newton’ and ‘post-Newtonian’ contributions Quantum part seems to violate universality (can been seen as a tidal effect). ...
... We see that we have universality between scalars and photons only for the ‘Newton’ and ‘post-Newtonian’ contributions Quantum part seems to violate universality (can been seen as a tidal effect). ...
What is Time in Quantum Mechanics?
... quite a number of physical aspects. It brings little comfort that they give a unique probability. On the contrary, it brings new difficulties.” Kijowski, in reply [24], essentially agreed with Mielnik: “... My construction of “arrival time” is indeed mathematically unique and final within the conceptu ...
... quite a number of physical aspects. It brings little comfort that they give a unique probability. On the contrary, it brings new difficulties.” Kijowski, in reply [24], essentially agreed with Mielnik: “... My construction of “arrival time” is indeed mathematically unique and final within the conceptu ...
Integration via a Quantum Information Processor
... classical bit, a qubit can be in a superposition of states 0 and 1 at the same time. In addition, quantum bits may become entangled, that is, there may arise correlations between quantum bits that are not allowed classically. These features allow quantum computers to solve certain problems much fast ...
... classical bit, a qubit can be in a superposition of states 0 and 1 at the same time. In addition, quantum bits may become entangled, that is, there may arise correlations between quantum bits that are not allowed classically. These features allow quantum computers to solve certain problems much fast ...
Bird`s Eye View - Student Friendly Quantum Field Theory
... commutation relations for certain operators (which result in other quantum phenomena such as uncertainty.) But it was soon recognized that one could do the reverse. One could, instead, take the classical Poisson brackets over into quantum commutation relations first, and because of that, the dynamic ...
... commutation relations for certain operators (which result in other quantum phenomena such as uncertainty.) But it was soon recognized that one could do the reverse. One could, instead, take the classical Poisson brackets over into quantum commutation relations first, and because of that, the dynamic ...
One Hundred Years of Quantum Physics
... “spread out” over the volume of the wave function. The momentum of a particle depends on the slope of the wave function; the greater the slope, the higher the momentum. Because the slope varies from place to place, momentum is also “spread out.” The need to abandon a classical picture in which posit ...
... “spread out” over the volume of the wave function. The momentum of a particle depends on the slope of the wave function; the greater the slope, the higher the momentum. Because the slope varies from place to place, momentum is also “spread out.” The need to abandon a classical picture in which posit ...
When Symmetry Breaks Down - School of Natural Sciences
... seemed to be three different topics. Their unified understanding, obtained in the nineteenth century,led scientists to describe them collectively as ‘electromagnetic’phenomena. Electromagnetism seems a good deal more obvious than the weak interactions. But in our modern understanding, which is based ...
... seemed to be three different topics. Their unified understanding, obtained in the nineteenth century,led scientists to describe them collectively as ‘electromagnetic’phenomena. Electromagnetism seems a good deal more obvious than the weak interactions. But in our modern understanding, which is based ...
ppt - UCSB Physics
... “paramagnetic”=“classical spin liquid” state - Youngblood+Axe (81): dipolar correlations in “ice-like” models • Landau-theory assumes paramagnetic state is disordered - Local constraint in many models implies non-Landau ...
... “paramagnetic”=“classical spin liquid” state - Youngblood+Axe (81): dipolar correlations in “ice-like” models • Landau-theory assumes paramagnetic state is disordered - Local constraint in many models implies non-Landau ...