talk_pacific - University of Kentucky
... Elementary fields/particles of QCD are never observed! Elementary particles of QCD are influenced by interaction strongly and approximate methods involving them do not work! ...
... Elementary fields/particles of QCD are never observed! Elementary particles of QCD are influenced by interaction strongly and approximate methods involving them do not work! ...
The Casimir Effect: Some Aspects
... its radius while the self-energy of a pair of plates is independent of the distance between them). Observe that, in the previous definition, we eliminate the regularization prescription only after the subtraction is made. Of course, there are many different regularization methods. A quite simple but ...
... its radius while the self-energy of a pair of plates is independent of the distance between them). Observe that, in the previous definition, we eliminate the regularization prescription only after the subtraction is made. Of course, there are many different regularization methods. A quite simple but ...
Chapter 3 - THE FIRST LAW
... the Law of Oneness, in terms of the existence of a 'primary substance', filling all space. He also referred to this 'primary substance' as 'ether'. This concept initially enjoyed some popularity among scientists, but when friction could not be detected, 11 Albert Einstein made use of this in support ...
... the Law of Oneness, in terms of the existence of a 'primary substance', filling all space. He also referred to this 'primary substance' as 'ether'. This concept initially enjoyed some popularity among scientists, but when friction could not be detected, 11 Albert Einstein made use of this in support ...
Hyperbolic Geometrodynamic Warp Drives
... inertia (the resistance of matter to accelerate) in the classical sense. There is also a second FTL prohibition supplied by special relativity. Suppose a device like the “ansible” of LeGuin and Card were discovered that permitted a faster-than-light or instantaneous communication, then an absolute f ...
... inertia (the resistance of matter to accelerate) in the classical sense. There is also a second FTL prohibition supplied by special relativity. Suppose a device like the “ansible” of LeGuin and Card were discovered that permitted a faster-than-light or instantaneous communication, then an absolute f ...
Probing Dark Energy with Atom Interferometry.
... The growing expansion rate of the universe, and the uneven distribution of light and matter within it, all lead to the conclusion that most of the energy in the universe is ‘dark energy’ [1]. The nature and origin of this energy are not understood. Within quantum field theory, the natural explanatio ...
... The growing expansion rate of the universe, and the uneven distribution of light and matter within it, all lead to the conclusion that most of the energy in the universe is ‘dark energy’ [1]. The nature and origin of this energy are not understood. Within quantum field theory, the natural explanatio ...
Casimir Forces in a Piston Geometry at Zero and Finite Temperatures
... due to the presence of conducting boundary conditions [1]. The energy spectrum is modified in a fashion that depends on the separation between the plates, a. While the zero-point energy is itself infinite, its variation with a gives rise to a finite force. High precision measurements, following the ...
... due to the presence of conducting boundary conditions [1]. The energy spectrum is modified in a fashion that depends on the separation between the plates, a. While the zero-point energy is itself infinite, its variation with a gives rise to a finite force. High precision measurements, following the ...
Vacuum superconductivity, conventional
... we notice that the strongly interacting (QCD) sector of the vacuum does contain an analogue of the phonon which may attract the-like electrically charged particles (condition ”C” of superconductivity, Section 2.2.1, page 4). The “vacuum” analogue of the phonon is a gluon which is a carrier of the st ...
... we notice that the strongly interacting (QCD) sector of the vacuum does contain an analogue of the phonon which may attract the-like electrically charged particles (condition ”C” of superconductivity, Section 2.2.1, page 4). The “vacuum” analogue of the phonon is a gluon which is a carrier of the st ...
classification of phenomena of parapsychology from the point of
... were determined correctly in 10 out of 12 cases (Boldyreva & Sotina, 2002). (Note that people who knew the position of the layers were not present during the experiment.) Note that a few researchers tend to explain some of these phenomena by quantum nonlocality. (Quantum nonlocality is a phenomenon ...
... were determined correctly in 10 out of 12 cases (Boldyreva & Sotina, 2002). (Note that people who knew the position of the layers were not present during the experiment.) Note that a few researchers tend to explain some of these phenomena by quantum nonlocality. (Quantum nonlocality is a phenomenon ...
Dynamic quantum vacuum and relativity
... On the other hand, 20th century theoretical physics brought the idea of a quantum vacuum as a fundamental medium subtending the observable forms of matter, energy and space-time. As a consequence of quantum field theories and cosmology, the physical vacuum can be regarded as a unified system governi ...
... On the other hand, 20th century theoretical physics brought the idea of a quantum vacuum as a fundamental medium subtending the observable forms of matter, energy and space-time. As a consequence of quantum field theories and cosmology, the physical vacuum can be regarded as a unified system governi ...
practical conversion of zero-point energy
... evolved from the historical development of ideas about the vacuum. In the 17th century, it was thought that a totally empty volume of space could be created by simply removing all gases. This was the first generally accepted concept of the vacuum. Late in the 19th century, however, it became apparen ...
... evolved from the historical development of ideas about the vacuum. In the 17th century, it was thought that a totally empty volume of space could be created by simply removing all gases. This was the first generally accepted concept of the vacuum. Late in the 19th century, however, it became apparen ...
Effect of quantum nuclear motion on hydrogen bonding
... But, we also show this treatment cannot describe the secondary geometric isotope effect for weak to moderate bonds; inclusion of bending vibrations is necessary. The outline of the paper is as follows. In Section II, we describe a simple potential energy surface based on a twodiabatic-state model, c ...
... But, we also show this treatment cannot describe the secondary geometric isotope effect for weak to moderate bonds; inclusion of bending vibrations is necessary. The outline of the paper is as follows. In Section II, we describe a simple potential energy surface based on a twodiabatic-state model, c ...
feasibility study
... significance which has evolved from the historical development of ideas about the vacuum. In the 17th century, it was thought that a totally empty volume of space could be created by simply removing all gases. ...
... significance which has evolved from the historical development of ideas about the vacuum. In the 17th century, it was thought that a totally empty volume of space could be created by simply removing all gases. ...
The Quantum Vacuum and the Cosmological Constant Problem
... cosmological constant as seen from the quantum (vacuum) point of view. We will review this history with particular emphasis on the events which have transformed or reconceptualized the cosmological constant problem, in order to clarify how it came to be seen as a fundamental problem for modern physi ...
... cosmological constant as seen from the quantum (vacuum) point of view. We will review this history with particular emphasis on the events which have transformed or reconceptualized the cosmological constant problem, in order to clarify how it came to be seen as a fundamental problem for modern physi ...
IOSR Journal of Applied Physics (IOSRJAP)
... arises with continuous elements (such as earth fire air and water). They pointed out that if matter was really a continuum then you could cut it into smaller and smaller pieces ad infinitum and, in principle, cut it out of existence into pieces of nothing that could not then be reassembled. Thus, th ...
... arises with continuous elements (such as earth fire air and water). They pointed out that if matter was really a continuum then you could cut it into smaller and smaller pieces ad infinitum and, in principle, cut it out of existence into pieces of nothing that could not then be reassembled. Thus, th ...
le journal de physique - Département de Physique de l`Ecole
... In a previous paper [Il, referred to as 1 in the following, we have considered the problem of the physical interpretation of radiative processes (radiative corrections such as the Lamb-shift or the spin anomaly g - 2, spontaneous emission rates). It is generally considered [2-51 that, in radiation t ...
... In a previous paper [Il, referred to as 1 in the following, we have considered the problem of the physical interpretation of radiative processes (radiative corrections such as the Lamb-shift or the spin anomaly g - 2, spontaneous emission rates). It is generally considered [2-51 that, in radiation t ...
Electromagnetic vacuum fluctuations, Casimir and Van der Waals
... an important step in this direction was the Lifshitz theory of the Casimir force between two dielectric bulks [10, 11]. Here we will use the general expression of the Casimir force obtained for two plane mirrors characterized by arbitrary frequency dependent reflection amplitudes [12]. This expressi ...
... an important step in this direction was the Lifshitz theory of the Casimir force between two dielectric bulks [10, 11]. Here we will use the general expression of the Casimir force obtained for two plane mirrors characterized by arbitrary frequency dependent reflection amplitudes [12]. This expressi ...
the quantum vacuum
... contributed to the specific heat of gases (Einstein and Stern, 1913). In 1916, NERNST wrote that the electromagnetic field should be, even in empty space and at absolute zero-point of temperature, i.e., in its ground state, in a state of ceaseless activity (the „quantum fluctuations“ of virtual phot ...
... contributed to the specific heat of gases (Einstein and Stern, 1913). In 1916, NERNST wrote that the electromagnetic field should be, even in empty space and at absolute zero-point of temperature, i.e., in its ground state, in a state of ceaseless activity (the „quantum fluctuations“ of virtual phot ...
Vacuum fluctuations and moving atoms/detectors: From Casimir
... recent result finds a coherent retardation correction up to twice the stationary value [1]. The Unruh effect [3] described colloquially states that a uniformly accelerated detector (UAD) feels hot at the Unruh temperature. There are at least three classes of detection schemes proposed. One based on ...
... recent result finds a coherent retardation correction up to twice the stationary value [1]. The Unruh effect [3] described colloquially states that a uniformly accelerated detector (UAD) feels hot at the Unruh temperature. There are at least three classes of detection schemes proposed. One based on ...
Initial Conditions from Inflation
... are the inflaton fluctuations in spatially flat gauge. Outside the horizon, the quantum nature of the field disappears and the quantum expectation value can be identified with the ensemble average of a classical stochastic field. The conservation of R on superhorizon scales then allows us to relate ...
... are the inflaton fluctuations in spatially flat gauge. Outside the horizon, the quantum nature of the field disappears and the quantum expectation value can be identified with the ensemble average of a classical stochastic field. The conservation of R on superhorizon scales then allows us to relate ...
Lamb shift
... The Dirac theory in Quantum Mechanics shows: the states, 2s1/2 and 2p1/2 of hydrogen atom are degenerate. ...
... The Dirac theory in Quantum Mechanics shows: the states, 2s1/2 and 2p1/2 of hydrogen atom are degenerate. ...
Casimir Interaction between a Plate and a Cylinder T. Emig, M. Kardar,
... mechanical systems on the nanometer scale, quantum effects like Casimir forces have become increasingly important [1,2]. These systems can probe mechanical oscillation modes of quasi-one-dimensional structures such as nanowires or carbon nanotubes with high precision [3]. However, thorough theoretic ...
... mechanical systems on the nanometer scale, quantum effects like Casimir forces have become increasingly important [1,2]. These systems can probe mechanical oscillation modes of quasi-one-dimensional structures such as nanowires or carbon nanotubes with high precision [3]. However, thorough theoretic ...
Quantum properties of spherical semiconductor quantum dots
... introduced in [29], when the electron-hole Coulomb interaction is negligible. But, in spherical QDs, this turns out to be more important, and cannot be discarded [30]. In section 3, we propose to use the previous EMA model for spherical QDs. It allows the derivation of analytic criterions for choosi ...
... introduced in [29], when the electron-hole Coulomb interaction is negligible. But, in spherical QDs, this turns out to be more important, and cannot be discarded [30]. In section 3, we propose to use the previous EMA model for spherical QDs. It allows the derivation of analytic criterions for choosi ...
power phenomenon of vacuum
... up to dozens of meters. Repeatedly increased electrons which all the same it is difficult to view by an eye owing to their smallness will be on distance of tens meters from a nucleus. And between electrons and nucleus remains a huge space, which is not filled with substance. But this is not empty sp ...
... up to dozens of meters. Repeatedly increased electrons which all the same it is difficult to view by an eye owing to their smallness will be on distance of tens meters from a nucleus. And between electrons and nucleus remains a huge space, which is not filled with substance. But this is not empty sp ...
The Cosmological Constant Problem, Dark Energy, and the
... just beyond current limits. Another frequently considered possibility is that General Relativity is modified at distances comparable to the size of the visible universe, so as to mimic a positive cosmological constant even though Λ = 0. In both cases, model parameters can be adjusted to lead to pre ...
... just beyond current limits. Another frequently considered possibility is that General Relativity is modified at distances comparable to the size of the visible universe, so as to mimic a positive cosmological constant even though Λ = 0. In both cases, model parameters can be adjusted to lead to pre ...