Another Philosopher Looks at Quantum Mechanics - SAS
... I present these three conditions explicitly because they can still bear on newer accounts developed since Putnam first wrote. It is, for instance, open to question whether Arthur Fine’s prison models account (1982) in which some kinds of particles ...
... I present these three conditions explicitly because they can still bear on newer accounts developed since Putnam first wrote. It is, for instance, open to question whether Arthur Fine’s prison models account (1982) in which some kinds of particles ...
Nonlocal Photorefractive Screening from Hot Electron Velocity Saturation in Semiconductors
... the signal-to-noise limit of the four-wave mixing experiment. At this reduced modulation index, the phase shift was again measured to be approximately sin"f# ! 0.9, which is consistent with the high-modulation value. It has also been pointed out that small modulation results are semiquantitatively v ...
... the signal-to-noise limit of the four-wave mixing experiment. At this reduced modulation index, the phase shift was again measured to be approximately sin"f# ! 0.9, which is consistent with the high-modulation value. It has also been pointed out that small modulation results are semiquantitatively v ...
PDF
... zero value elsewhere. Currently, however, there are several important aspects of quantum dynamics left out of the invariant, simplified picture provided by group symmetries and their corresponding representations of quantum operator algebras [?]. An alternative approach proposed in [?] employs diffe ...
... zero value elsewhere. Currently, however, there are several important aspects of quantum dynamics left out of the invariant, simplified picture provided by group symmetries and their corresponding representations of quantum operator algebras [?]. An alternative approach proposed in [?] employs diffe ...
From photoelectric effect to digital imaging
... century, brought classical physical into a deep crisis and led to the development of quantum mechanics: the photoelectric effect. Qualitatively, the photoelectric effect is simply t he fact that electrons can escape from the surface of a metal when light shines on it . In general, electrons can only ...
... century, brought classical physical into a deep crisis and led to the development of quantum mechanics: the photoelectric effect. Qualitatively, the photoelectric effect is simply t he fact that electrons can escape from the surface of a metal when light shines on it . In general, electrons can only ...
24 Interferometry with Macromolecules: Quantum Paradigms Tested
... based on a reduced density matrix which has been traced over the meter states. If all pointer states are sufficiently distinct, i.e. Φn|Φm 0, it can be shown that the quantum system is forced into a classical mixed state, lacking all coherence and ability to interfere. This formalism may be inter ...
... based on a reduced density matrix which has been traced over the meter states. If all pointer states are sufficiently distinct, i.e. Φn|Φm 0, it can be shown that the quantum system is forced into a classical mixed state, lacking all coherence and ability to interfere. This formalism may be inter ...
- New England Complex Systems Institute
... be forthcoming. And these ideas are still at the “from the bottom up,” even “quasiexperimental” stage: Examples must be collected and analyzed before any broad formulations can even be considered. Nevertheless, the very existence of such parallel examples makes raising the question(s) worthwhile. Ev ...
... be forthcoming. And these ideas are still at the “from the bottom up,” even “quasiexperimental” stage: Examples must be collected and analyzed before any broad formulations can even be considered. Nevertheless, the very existence of such parallel examples makes raising the question(s) worthwhile. Ev ...
The fractional quantum Hall effect in wide quantum wells
... occupied LLs of both SBs are partially filled. They must be pinned at the same energy. If they are not, it would be energetically favorable to transfer electrons from one subband to the other. Charge transfer is however accompanied by a relative shift of the LLs of both subbands and hence both level ...
... occupied LLs of both SBs are partially filled. They must be pinned at the same energy. If they are not, it would be energetically favorable to transfer electrons from one subband to the other. Charge transfer is however accompanied by a relative shift of the LLs of both subbands and hence both level ...
Chapter 5 PPT
... concept of the Uncertainty Principle. It is impossible to determine simultaneously both the position and momentum of an electron (or any other small particle). ...
... concept of the Uncertainty Principle. It is impossible to determine simultaneously both the position and momentum of an electron (or any other small particle). ...
doc - Jnoodle
... (const.B/hc) = (mk2q4/2h'2)/hc. Inserting the values gives the same value for this expression as that of the experimentally found Rydberg constant RH. ] [Or to be more precise: the value so reached is close enough to the experimental one to show that we are on the right track with this theory, but l ...
... (const.B/hc) = (mk2q4/2h'2)/hc. Inserting the values gives the same value for this expression as that of the experimentally found Rydberg constant RH. ] [Or to be more precise: the value so reached is close enough to the experimental one to show that we are on the right track with this theory, but l ...
- Philsci
... mass, spin and position. Compared to classical physics there is the complication that not all these quantum quantities can simultaneously be definite-valued, as a consequence of complementarity. (The characterization of quantum particles that we give here is not interpretation independent: for exam ...
... mass, spin and position. Compared to classical physics there is the complication that not all these quantum quantities can simultaneously be definite-valued, as a consequence of complementarity. (The characterization of quantum particles that we give here is not interpretation independent: for exam ...
Renormalization
... One might be tempted to conclude from this that a phenomenological description is simply not possible beyond the delta function approximation. After all, if the underlying theory is known, one can always compute the corrections without any approximation, and it might be argued that the inconsistenci ...
... One might be tempted to conclude from this that a phenomenological description is simply not possible beyond the delta function approximation. After all, if the underlying theory is known, one can always compute the corrections without any approximation, and it might be argued that the inconsistenci ...
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 ...
... 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 ...
Closed Timelike Curves Make Quantum and
... are “solutions” and others are not, and that our goal is to find a solution in time polynomial in n, assuming solutions exist and can be recognized efficiently. Then we could build a machine M that applied the following transformation to its input x: if x is a solution then M (x) = x, while if x is ...
... are “solutions” and others are not, and that our goal is to find a solution in time polynomial in n, assuming solutions exist and can be recognized efficiently. Then we could build a machine M that applied the following transformation to its input x: if x is a solution then M (x) = x, while if x is ...
The quantum Heisenberg group H(1)q
... The Hopf algebra H( 1) 4 just defined is clearly different from the algebra of the q-deformed creation and annihilation operators used in the Jordan-Schwinger map of SU (2) 4;4 as it has been shown in Ref. 5 the right quantum structure for these q-deformed operators is B( O( 1) 9. This fact is relat ...
... The Hopf algebra H( 1) 4 just defined is clearly different from the algebra of the q-deformed creation and annihilation operators used in the Jordan-Schwinger map of SU (2) 4;4 as it has been shown in Ref. 5 the right quantum structure for these q-deformed operators is B( O( 1) 9. This fact is relat ...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.