- Philsci
... terms of its wave function ( x, t ) , then other supplement quantities will be needed to describe the mass and charge distributions of the system in space, while this obviously contradicts the premise that the wave function is a complete description. In fact, the dynamical collapse theories such a ...
... terms of its wave function ( x, t ) , then other supplement quantities will be needed to describe the mass and charge distributions of the system in space, while this obviously contradicts the premise that the wave function is a complete description. In fact, the dynamical collapse theories such a ...
Could Inelastic Interactions Induce Quantum Probabilistic Transitions?
... without simultaneously taking into account what exists at other small regions. Propensitons of this type seem strange because they are unfamiliar – but we must not confuse the unfamiliar with the inexplicable or impossible. Non-local features of the -function do not prevent it from specifying the a ...
... without simultaneously taking into account what exists at other small regions. Propensitons of this type seem strange because they are unfamiliar – but we must not confuse the unfamiliar with the inexplicable or impossible. Non-local features of the -function do not prevent it from specifying the a ...
Primitive ontology and quantum state in the GRW matter density theory
... subdivides the first option into two proposals depending on the kind of object that one takes the quantum state to be. Its mathematical representation clearly suggests that it is some kind of field, but it is equally clear that it cannot be an ordinary field on three-dimensional space or four-dimens ...
... subdivides the first option into two proposals depending on the kind of object that one takes the quantum state to be. Its mathematical representation clearly suggests that it is some kind of field, but it is equally clear that it cannot be an ordinary field on three-dimensional space or four-dimens ...
The Quantum Measurement Problem: State of Play - Philsci
... measurements — the amplification of classical chaos into quantum-mechanical indeterminateness, in particular — can also give rise to macroscopic superpositions.) Solutions of the measurement problem are often called “interpretations of QM”, the idea being that all such “interpretations” agree on the ...
... measurements — the amplification of classical chaos into quantum-mechanical indeterminateness, in particular — can also give rise to macroscopic superpositions.) Solutions of the measurement problem are often called “interpretations of QM”, the idea being that all such “interpretations” agree on the ...
Bohmian Trajectories of the Two-Electron Helium Atom
... wave mechanics in 1925 [37, 38, 39, 40], he did so by trying to associate, in some reasonable way, concepts normally associated with waves (frequency, wavelength, etc.) with material particles [41] (see also [32] for a discussion on this). In doing this, he arrived at his substitution rules – that e ...
... wave mechanics in 1925 [37, 38, 39, 40], he did so by trying to associate, in some reasonable way, concepts normally associated with waves (frequency, wavelength, etc.) with material particles [41] (see also [32] for a discussion on this). In doing this, he arrived at his substitution rules – that e ...
talk
... Analogy: Statistical thermodynamics is the underlying theory of phenomenological thermodynamics. The positions and momenta of a huge number of particles are the hidden variables which are not measurable. Internal energy, pressure, entropy etc. are averaged quantities that can be measured. Dienstag, ...
... Analogy: Statistical thermodynamics is the underlying theory of phenomenological thermodynamics. The positions and momenta of a huge number of particles are the hidden variables which are not measurable. Internal energy, pressure, entropy etc. are averaged quantities that can be measured. Dienstag, ...
A mechanistic classical laboratory situation violating the Bell
... Bell has put forward this locality hypothesis having in mind the entity consisting of two spin-1/2 particles in the singlet spin state. Why do people find this locality hypothesis 'natural' for this entity? Because they imagine the entity to be an entity consisting of two spin-1/2 particles located ...
... Bell has put forward this locality hypothesis having in mind the entity consisting of two spin-1/2 particles in the singlet spin state. Why do people find this locality hypothesis 'natural' for this entity? Because they imagine the entity to be an entity consisting of two spin-1/2 particles located ...
Can the Wave Function in Configuration Space Be Replaced by
... particles move around) and, in addition, a separate 3N-dimensional physical space (in which the wave function lives).3 Such a view would evidently have to face several obvious and pressing questions about the nature of the physical process through which the wave function affects the particles. To av ...
... particles move around) and, in addition, a separate 3N-dimensional physical space (in which the wave function lives).3 Such a view would evidently have to face several obvious and pressing questions about the nature of the physical process through which the wave function affects the particles. To av ...
Many Worlds? An Introduction - General Guide To Personal and
... smaller articles made up their compilation The Many Worlds Interpretation of Quantum Mechanics (DeWitt and Graham [1973]). But as such it had a notable deficiency. It lacked an account of why the wavefunction must be viewed in terms of one sort of multiplicity rather than another—and why, even, a mu ...
... smaller articles made up their compilation The Many Worlds Interpretation of Quantum Mechanics (DeWitt and Graham [1973]). But as such it had a notable deficiency. It lacked an account of why the wavefunction must be viewed in terms of one sort of multiplicity rather than another—and why, even, a mu ...
pdf
... the most ‘fundamental’. For example, the best known hidden variable theory — the de Broglie-Bohm theory — assigns a privileged role to position: it asserts that, no matter what the quantum state is, there are point particles with definite positions, and the distribution of these particles agrees wi ...
... the most ‘fundamental’. For example, the best known hidden variable theory — the de Broglie-Bohm theory — assigns a privileged role to position: it asserts that, no matter what the quantum state is, there are point particles with definite positions, and the distribution of these particles agrees wi ...
Excerpt. - Dover Publications
... of experiments. Now, from the fact that Eq. 10.11 cannot be satisfied for dispersion-free sets, we should not conclude that dispersion-free sets do not exist. Conversely, we have to conclude that the additivity postulate does not apply to such sets. Indeed, the true value of V are not of a quantum n ...
... of experiments. Now, from the fact that Eq. 10.11 cannot be satisfied for dispersion-free sets, we should not conclude that dispersion-free sets do not exist. Conversely, we have to conclude that the additivity postulate does not apply to such sets. Indeed, the true value of V are not of a quantum n ...
The Ontology of Bohmian Mechanics
... together. To apply the theory in physical situations of interest, one uses concepts that allow the practical description of subsystems of the universe. This holds essentially for any fundamental physical theory. In Bohmian mechanics, the appropriate concept is that of an effective wave-function, in ...
... together. To apply the theory in physical situations of interest, one uses concepts that allow the practical description of subsystems of the universe. This holds essentially for any fundamental physical theory. In Bohmian mechanics, the appropriate concept is that of an effective wave-function, in ...
Here
... Heisenberg’s uncertainty principle (contd) _________________________________________ The deep significance of the uncertainty principle is that we cannot observe a quantum system without changing it. The independent observer, watching from the sidelines without influencing the observed phenomenon, ...
... Heisenberg’s uncertainty principle (contd) _________________________________________ The deep significance of the uncertainty principle is that we cannot observe a quantum system without changing it. The independent observer, watching from the sidelines without influencing the observed phenomenon, ...
An asymptotic preserving scheme for the Schrödinger equation in
... from [6,7,1]. The initial density is given by n0 = e−50(x−0.5) and the initial current is given by q 0 = 0.2(2x − 1)n0 . Figure 1 shows the results for the scheme in eulerian coordinates (2)–(4). We plot the density, current and bohm potential at t = 0.54 for different ε. As ε tends to zero, the den ...
... from [6,7,1]. The initial density is given by n0 = e−50(x−0.5) and the initial current is given by q 0 = 0.2(2x − 1)n0 . Figure 1 shows the results for the scheme in eulerian coordinates (2)–(4). We plot the density, current and bohm potential at t = 0.54 for different ε. As ε tends to zero, the den ...
- Philsci
... laws: the guiding equation fixing the temporal development of the position of the particles, and the Schrödinger equation determining the temporal development of the universal wavefunction, that is, the wave-function of all the particles in the universe. These two laws are linked in this way: the ro ...
... laws: the guiding equation fixing the temporal development of the position of the particles, and the Schrödinger equation determining the temporal development of the universal wavefunction, that is, the wave-function of all the particles in the universe. These two laws are linked in this way: the ro ...
History of Quantum Mechanics or the Comedy of Errors
... Einstein [58, p. 907]: “We often discussed his notions on objective reality. I recall that during one walk Einstein suddenly stopped, turned to me and asked whether I really believed that the moon exists only when I look at it.” “Is the moon there when nobody looks?” has also become a famous Einstei ...
... Einstein [58, p. 907]: “We often discussed his notions on objective reality. I recall that during one walk Einstein suddenly stopped, turned to me and asked whether I really believed that the moon exists only when I look at it.” “Is the moon there when nobody looks?” has also become a famous Einstei ...
History of Quantum Mechanics or the Comedy of Errors1 Jean
... Einstein [58, p. 907]: “We often discussed his notions on objective reality. I recall that during one walk Einstein suddenly stopped, turned to me and asked whether I really believed that the moon exists only when I look at it.” “Is the moon there when nobody looks?” has also become a famous Einstei ...
... Einstein [58, p. 907]: “We often discussed his notions on objective reality. I recall that during one walk Einstein suddenly stopped, turned to me and asked whether I really believed that the moon exists only when I look at it.” “Is the moon there when nobody looks?” has also become a famous Einstei ...
Are Quantum Objects Propensitons
... performed. Schrödinger proved that his theory and Heisenberg’s matrix mechanics are equivalent: the outcome, a sort of synthesis of the two theories, is OQT. OQT is an extraordinarily successful theory empirically, perhaps the most successful in the whole of physics when one takes into account the r ...
... performed. Schrödinger proved that his theory and Heisenberg’s matrix mechanics are equivalent: the outcome, a sort of synthesis of the two theories, is OQT. OQT is an extraordinarily successful theory empirically, perhaps the most successful in the whole of physics when one takes into account the r ...
Experimental nonlocal and surreal Bohmian trajectories
... in classical mechanics. In orthodox quantum mechanics, however, a particle does not follow a trajectory, because it does not have a simultaneous position and momentum. Nonetheless, it is possible to reinterpret the quantum formalism as describing particles following definite trajectories, each with ...
... in classical mechanics. In orthodox quantum mechanics, however, a particle does not follow a trajectory, because it does not have a simultaneous position and momentum. Nonetheless, it is possible to reinterpret the quantum formalism as describing particles following definite trajectories, each with ...
Propensities in Quantum Mechanics - Philsci
... In an excellent pioneering article published in 1954 Henry Margenau argued in favour of an interpretation of quantum observables as dispositional physical quantities, which he called latencies. The argument proceeded in two stages. First, negatively, Margenau argued against both Bohm’s theory and th ...
... In an excellent pioneering article published in 1954 Henry Margenau argued in favour of an interpretation of quantum observables as dispositional physical quantities, which he called latencies. The argument proceeded in two stages. First, negatively, Margenau argued against both Bohm’s theory and th ...
Quantum Computing in the de Broglie-Bohm Pilot
... Two theories of pilot-waves . . . . . . . . . . . . . . . . . . . . . . ...
... Two theories of pilot-waves . . . . . . . . . . . . . . . . . . . . . . ...
The symmetrized quantum potential and space as a direct
... relative motion of one with respect to the other. This is the perspective adopted by general theory of relativity : to express the relative motion of the variables, with respect to each other, in a democratic fashion [16]. In the example under consideration, if we adopt the point of view of pre-gene ...
... relative motion of one with respect to the other. This is the perspective adopted by general theory of relativity : to express the relative motion of the variables, with respect to each other, in a democratic fashion [16]. In the example under consideration, if we adopt the point of view of pre-gene ...
- Philsci
... any part of classical physics, would be able to issue in physical predictions about actual physical states of affairs entirely independently of measurement. Such a theory would be able to predict and explain macroscopic, quasi-classical phenomena as arising from the quantum field alone, without call ...
... any part of classical physics, would be able to issue in physical predictions about actual physical states of affairs entirely independently of measurement. Such a theory would be able to predict and explain macroscopic, quasi-classical phenomena as arising from the quantum field alone, without call ...
Nonlocal “realistic” Leggett models can be considered refuted by the
... doppler shifted when it is reflected by a beam-splitter in motion. Therefore it is coherent to assume that the inertial frame of Alice’s polarizing beam-splitter defines the clock measuring the time for her outcome, and the inertial frame of Bob’s polarizing beam-splitter defines the clock measuring ...
... doppler shifted when it is reflected by a beam-splitter in motion. Therefore it is coherent to assume that the inertial frame of Alice’s polarizing beam-splitter defines the clock measuring the time for her outcome, and the inertial frame of Bob’s polarizing beam-splitter defines the clock measuring ...
Non Ideal Measurements by David Albert (Philosophy, Columbia) and Barry Loewer
... measurement problem is that, if the laws of quantum mechanics (the linear laws of state evolution) are taken to characterize experiments (and measurements), then these laws predict that they do not have outcomes. The standard response to this is to exempt measurements from the linear laws and to in ...
... measurement problem is that, if the laws of quantum mechanics (the linear laws of state evolution) are taken to characterize experiments (and measurements), then these laws predict that they do not have outcomes. The standard response to this is to exempt measurements from the linear laws and to in ...