Quantum Objects - Philsci
... Based on this interpretation, the physical object coincides with time and, like time, it is a continuum2, which has flowing3 temporal parts: the outcome of measuring an observable of the system, at this moment, is always something other than the outcome we would obtain in another measurement event a ...
... Based on this interpretation, the physical object coincides with time and, like time, it is a continuum2, which has flowing3 temporal parts: the outcome of measuring an observable of the system, at this moment, is always something other than the outcome we would obtain in another measurement event a ...
Particles and Fields
... When discussing the size of atomic and subatomic particles, it is necessary to give some operational meaning to this notion. Especially in quantum mechanics, where according to circumstances objects behave either as a particle or as a wave, it is not directly clear how to determine their dimensions ...
... When discussing the size of atomic and subatomic particles, it is necessary to give some operational meaning to this notion. Especially in quantum mechanics, where according to circumstances objects behave either as a particle or as a wave, it is not directly clear how to determine their dimensions ...
Non Ideal Measurements by David Albert (Philosophy, Columbia) and Barry Loewer
... Gleason's theorem). This "solution" of the measurement problem can hardly be thought to be satisfactory. The trouble is that which observables count as pointer and measured observables is imported from outside of the theory. That quantum mechanics (once the eigenstate_eigenvalue link is dropped) is ...
... Gleason's theorem). This "solution" of the measurement problem can hardly be thought to be satisfactory. The trouble is that which observables count as pointer and measured observables is imported from outside of the theory. That quantum mechanics (once the eigenstate_eigenvalue link is dropped) is ...
Kolmogorov complexity as a hidden factor of scientific discourse
... Model got its first important experimental correlates with the discovery of quarks (components of nuclear “elementary” particles) and W and Z bosons, quanta of ineractions. For a very rich and complex history of this stage of theoretical physics, stressing the role of experiments and experimenters, ...
... Model got its first important experimental correlates with the discovery of quarks (components of nuclear “elementary” particles) and W and Z bosons, quanta of ineractions. For a very rich and complex history of this stage of theoretical physics, stressing the role of experiments and experimenters, ...
Lecture4 - EECS: www
... Consider a Si sample doped with 1017 As atoms/cm3. How will its resistivity change when T is increased from 300K to 400K? Answer: The temperature dependent factor in (and therefore ) is mn. From the mobility vs. temperature curve for 1017 cm-3, we find that mn decreases from 770 at 300K to 400 at ...
... Consider a Si sample doped with 1017 As atoms/cm3. How will its resistivity change when T is increased from 300K to 400K? Answer: The temperature dependent factor in (and therefore ) is mn. From the mobility vs. temperature curve for 1017 cm-3, we find that mn decreases from 770 at 300K to 400 at ...
Prof. Makarova Lecture 1 - pcam
... will find themselves with a separation r For electrons with opposite spin (in a metal), this probability distribution looks pretty flat: electrons with opposite spin are free to run over each other, and they do. But electrons with the same spin must never be at the same location at the same time ...
... will find themselves with a separation r For electrons with opposite spin (in a metal), this probability distribution looks pretty flat: electrons with opposite spin are free to run over each other, and they do. But electrons with the same spin must never be at the same location at the same time ...
Manipulation of electron spin in a quantum dot D. G
... Quantum algorithms usually assume that either the system dynamically evolves through a sequence of unitary transformations or that a set λ of external control parameters of the Hamiltonian H smoothly changes in time (“adiabatic evolution”) [7]. Accidental level degeneracies are quite common in QD’s, ...
... Quantum algorithms usually assume that either the system dynamically evolves through a sequence of unitary transformations or that a set λ of external control parameters of the Hamiltonian H smoothly changes in time (“adiabatic evolution”) [7]. Accidental level degeneracies are quite common in QD’s, ...
Qubits with electrons on liquid helium * M. I. Dykman, P. M. Platzman,
... the relaxation rate of a confined electron can be much less than that of a free electrons. The rate of ripplon-induced dephasing can be even smaller than the previous estimate for a strong magnetic field. This is due to large level spacing in a 3D confining potential formed by a localizing microelec ...
... the relaxation rate of a confined electron can be much less than that of a free electrons. The rate of ripplon-induced dephasing can be even smaller than the previous estimate for a strong magnetic field. This is due to large level spacing in a 3D confining potential formed by a localizing microelec ...
A Multi Magnetic Mirror Machine for Plasma Production with Electron
... used in most of the controlled thermonuclear fusion experiments [3]. Theoretical and experimental developments were also made in order to clear basic plasma processes such as the kinetic instabilities generated by the mirror loss cone distribution function. Electron and ion diffusion to the mirror c ...
... used in most of the controlled thermonuclear fusion experiments [3]. Theoretical and experimental developments were also made in order to clear basic plasma processes such as the kinetic instabilities generated by the mirror loss cone distribution function. Electron and ion diffusion to the mirror c ...
Far-infrared Rydberg-Rydberg transitions in a magnetic field: Deexcitation of antihydrogen atoms
... the manifolds of adjacent n states intersect. This is known as the n-mixing regime 共n ⬎ 43 for 0.85 T兲. Most of the previous measurements and calculations were for ground, or nearly ground, initial states. Here we study the transitions between highly excited states n → n⬘. We investigated both the e ...
... the manifolds of adjacent n states intersect. This is known as the n-mixing regime 共n ⬎ 43 for 0.85 T兲. Most of the previous measurements and calculations were for ground, or nearly ground, initial states. Here we study the transitions between highly excited states n → n⬘. We investigated both the e ...
The quantum vacuum as the origin of the speed of... T E P
... mechanism based upon a “natural” quantum vacuum description which leads to sensible estimations of these three electromagnetic constants. A consequence of this description is that µ0 , !0 and c are not fundamental constants but observable parameters of the quantum vacuum: they can vary if the vacuum ...
... mechanism based upon a “natural” quantum vacuum description which leads to sensible estimations of these three electromagnetic constants. A consequence of this description is that µ0 , !0 and c are not fundamental constants but observable parameters of the quantum vacuum: they can vary if the vacuum ...
pdf
... thinking, as well as the mixed nature of student responses across contexts. The results may be summarized as follows: 1) Instructors were generally explicit in teaching a particular interpretation of the double-slit experiment with single quanta, though not explicitly as an interpretation; student ...
... thinking, as well as the mixed nature of student responses across contexts. The results may be summarized as follows: 1) Instructors were generally explicit in teaching a particular interpretation of the double-slit experiment with single quanta, though not explicitly as an interpretation; student ...
Study on Systems of Hydrogen Atoms in the View Point of Natural
... In this paper, we study the derivation of the Schrödinger equation of the system of hydrogen atoms and its solutions which are necessary to analyze the natural statistical phenomena of the system of hydrogen atoms in the basis of the laws of natural statistical physics. Using the above results, we ...
... In this paper, we study the derivation of the Schrödinger equation of the system of hydrogen atoms and its solutions which are necessary to analyze the natural statistical phenomena of the system of hydrogen atoms in the basis of the laws of natural statistical physics. Using the above results, we ...
Open-Closed String Duality in Field Theory? - damtp
... explicit solution for the string ending on the domain wall which can be found analytically in e2 → ∞ limit [5]. Another is to study the “BIon’ spike solution emanating from the wall [5, 6]. Finally, one may find numerical solutions describing multiple strings ending on multiple walls; an example, ta ...
... explicit solution for the string ending on the domain wall which can be found analytically in e2 → ∞ limit [5]. Another is to study the “BIon’ spike solution emanating from the wall [5, 6]. Finally, one may find numerical solutions describing multiple strings ending on multiple walls; an example, ta ...
Spin-Orbit-Induced Spin-Density Wave in a Quantum Wire
... processes illustrated in Fig. 1 become momentumnonconserving ones. As a result, this important scattering channel will disappear above some critical misalignment angle , which can be estimated as follows. Cooper order is destroyed once the misalignment cost / 2vF p0 becomes comparable to the Coop ...
... processes illustrated in Fig. 1 become momentumnonconserving ones. As a result, this important scattering channel will disappear above some critical misalignment angle , which can be estimated as follows. Cooper order is destroyed once the misalignment cost / 2vF p0 becomes comparable to the Coop ...
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.