6.453 Quantum Optical Communication
... Turning to Slide 10, we see that the coherent states have the desired classical limit behavior for the quadrature components of the oscillator. Their mean undergoes simple harmonic motion with an amplitude equal to the magnitude of the coherentstate eigenvalue, and their standard deviations remain c ...
... Turning to Slide 10, we see that the coherent states have the desired classical limit behavior for the quadrature components of the oscillator. Their mean undergoes simple harmonic motion with an amplitude equal to the magnitude of the coherentstate eigenvalue, and their standard deviations remain c ...
of THE by 0.
... reabsorption) that is regarded as the mechanism by which the electron interacts with the zero-point field. It must be emphasized that this mechanism of photon emission and absorption is a very convenient way of handling radiation problems. ...
... reabsorption) that is regarded as the mechanism by which the electron interacts with the zero-point field. It must be emphasized that this mechanism of photon emission and absorption is a very convenient way of handling radiation problems. ...
t - CSIC
... Reeh- Schlieder Th. There are no local number operators in QFT Unruh Effect There is no unique total number operator in free QFT ...
... Reeh- Schlieder Th. There are no local number operators in QFT Unruh Effect There is no unique total number operator in free QFT ...
Quantum Fluctuations of Mass for a Mirror in Vacuum
... be neglected (h̄ω ≪< m >). For low frequencies (smaller than the reflection cut-off Ω), mass is practically constant (15), and equation of motion (19) is well approximated by the Newton law. Then, linear response formalism provides a consistent treatment of quantum fluctations of field and scatterer ...
... be neglected (h̄ω ≪< m >). For low frequencies (smaller than the reflection cut-off Ω), mass is practically constant (15), and equation of motion (19) is well approximated by the Newton law. Then, linear response formalism provides a consistent treatment of quantum fluctations of field and scatterer ...
Breakdown of the static approximation in itinerant - HAL
... is believed to be valid when the temperature is higher than the excitation energies of the auxiliary field, e.g., spin wave energies. The separation into classical and quantum parts ...
... is believed to be valid when the temperature is higher than the excitation energies of the auxiliary field, e.g., spin wave energies. The separation into classical and quantum parts ...
the technical page
... If we were fully deterministic, as in general relativity, we would have Tr(EIE*I) = 9 which would imply ¦V¦² = 9 too, as <0¦0> = 1 and so, V would be a universal constant of amplitude 3 that could be brought back to zero only shifting the reference level. However, the real physical situation is stoc ...
... If we were fully deterministic, as in general relativity, we would have Tr(EIE*I) = 9 which would imply ¦V¦² = 9 too, as <0¦0> = 1 and so, V would be a universal constant of amplitude 3 that could be brought back to zero only shifting the reference level. However, the real physical situation is stoc ...
Redalyc.Atomic radiative corrections without QED: role of the zero
... The random zero-point radiation field (ZPF) of mean energy ~ω/2 per normal mode, taken as a real field, has been shown in a series of recent papers [1-3] to be responsible for the basic quantum properties of matter. In particular, the usual quantum description, as afforded e.g. by the Schrödinger e ...
... The random zero-point radiation field (ZPF) of mean energy ~ω/2 per normal mode, taken as a real field, has been shown in a series of recent papers [1-3] to be responsible for the basic quantum properties of matter. In particular, the usual quantum description, as afforded e.g. by the Schrödinger e ...
Lecture XVII
... high energies, so that this region will be unobservable as a result of the uncertainty principle. Thus, the quantum harmonic oscillator smoothly crosses over to become classical oscillator. This crossing over from quantum to classical behaviour was called ...
... high energies, so that this region will be unobservable as a result of the uncertainty principle. Thus, the quantum harmonic oscillator smoothly crosses over to become classical oscillator. This crossing over from quantum to classical behaviour was called ...
Dirac`s hole theory and the Pauli principle: clearing up the confusion.
... in their unperturbed state 01, p and a positive energy electron as defined by (4.3). We then apply an electric potential. The result is that each wave function evolves from its initial state in accordance with the Dirac equation. We find that the change in energy of the vacuum electrons fro ...
... in their unperturbed state 01, p and a positive energy electron as defined by (4.3). We then apply an electric potential. The result is that each wave function evolves from its initial state in accordance with the Dirac equation. We find that the change in energy of the vacuum electrons fro ...
Gluon fluctuations in vacuum
... the quality characteristic of ponderable media, as consisting of parts which may be tracked through time. The idea of motion may not be applied to it.” ...
... the quality characteristic of ponderable media, as consisting of parts which may be tracked through time. The idea of motion may not be applied to it.” ...
Quantum fluctuations and the Casimir effect
... add noise to the signal to comply with Heisenberg principle. • This noise is due to the original shot-noise, that is, before coupling to the signal, and the new one arising due to this coupling. ...
... add noise to the signal to comply with Heisenberg principle. • This noise is due to the original shot-noise, that is, before coupling to the signal, and the new one arising due to this coupling. ...
casimir effect in external magnetic field
... a Dirac quantum field under antiperiodic boundary conditions. This choice of geometry and external fields avoids technical difficulties and focuses our attention on the fundamental issue. The fermionic Casimir effect was first calculated by Johnson [2] for applications in the MIT bag model. For a ma ...
... a Dirac quantum field under antiperiodic boundary conditions. This choice of geometry and external fields avoids technical difficulties and focuses our attention on the fundamental issue. The fermionic Casimir effect was first calculated by Johnson [2] for applications in the MIT bag model. For a ma ...
Quantum vacuum in de Sitter spacetime
... the Einstein equations with the positive cosmological constant Due to the high symmetry numerous physical problems are exactly solvable on dS background and a Better understanding of physical effects in this bulk could serve as a handle to deal with more complicated geometries In most inflationary m ...
... the Einstein equations with the positive cosmological constant Due to the high symmetry numerous physical problems are exactly solvable on dS background and a Better understanding of physical effects in this bulk could serve as a handle to deal with more complicated geometries In most inflationary m ...
Document
... Dv=±1 Dv=+1: absorption Dv=-1: emission If an oscillator has only one frequency associated with it, then it can only interact with radiation of that frequency. Selection rules limit the number of allowed transitions ...
... Dv=±1 Dv=+1: absorption Dv=-1: emission If an oscillator has only one frequency associated with it, then it can only interact with radiation of that frequency. Selection rules limit the number of allowed transitions ...
Aalborg Universitet Beyond the Modern Physics and Cosmological Equations
... analyzed. This review can be a step to combine general relativity and quantum mechanics. Zero-point energy, also called quantum vacuum zero-point energy, is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical sys ...
... analyzed. This review can be a step to combine general relativity and quantum mechanics. Zero-point energy, also called quantum vacuum zero-point energy, is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical sys ...
Grof, Jung, and the Quantum Vacuum
... over a hundred years ago William James had noted, "Our normal waking consciousness...is but one special type of consciousness, whilst all about it, parted from it by the filmiest of screens, there lie potential forms of consciousness entirely different. We may go through life without suspecting thei ...
... over a hundred years ago William James had noted, "Our normal waking consciousness...is but one special type of consciousness, whilst all about it, parted from it by the filmiest of screens, there lie potential forms of consciousness entirely different. We may go through life without suspecting thei ...
Chapter8
... In exact resonance (δ = 0) the states would be degenerate in the case without coupling. However, a classical field couples the two bare states which mix and form the dressed states. Instead of a crossing a pronounced anti-crossing is observed. The splitting is proportional to the Rabi-frequency and ...
... In exact resonance (δ = 0) the states would be degenerate in the case without coupling. However, a classical field couples the two bare states which mix and form the dressed states. Instead of a crossing a pronounced anti-crossing is observed. The splitting is proportional to the Rabi-frequency and ...
to the full version in PDF
... H.E.Puthoff proposed in his article[1] that gravity is a form of long-range van der Waals force associated with the Zitterbewegung of elementary particles in response to zero-point fluctuations(ZPF) of the vacuum. Prof. Biefeld and T.T.Brown discovered that a sufficiently charged capacitor with diel ...
... H.E.Puthoff proposed in his article[1] that gravity is a form of long-range van der Waals force associated with the Zitterbewegung of elementary particles in response to zero-point fluctuations(ZPF) of the vacuum. Prof. Biefeld and T.T.Brown discovered that a sufficiently charged capacitor with diel ...
TALK - ECM-UB
... calculating the polarization operator of gravitons arising from particle loops in the linearized gravity, cf. Gorbar-Shapiro, JHEP 02(2003)21 • In the physical mass-dependent renormalization scheme an arbitrary parameter μ is usually traded for a Euclidean momentum p. • In QCD, for example, one writ ...
... calculating the polarization operator of gravitons arising from particle loops in the linearized gravity, cf. Gorbar-Shapiro, JHEP 02(2003)21 • In the physical mass-dependent renormalization scheme an arbitrary parameter μ is usually traded for a Euclidean momentum p. • In QCD, for example, one writ ...
Can the vacuum energy be dark matter?
... • Vacuum energy of fundamental fields due to quantum fluctuations (uncertainty principle): – massive scalar: ...
... • Vacuum energy of fundamental fields due to quantum fluctuations (uncertainty principle): – massive scalar: ...
An Electromagnetic Basis for Inertia and Gravitation
... Newton’s second law, his equation of motion F=ma, is arguably regarded as the origin of physics. Forces and accelerations are perceptible phenomena, and from the equation of motion one infers that matter possesses a property called inertial mass. Note that it is impossible to directly perceive this ...
... Newton’s second law, his equation of motion F=ma, is arguably regarded as the origin of physics. Forces and accelerations are perceptible phenomena, and from the equation of motion one infers that matter possesses a property called inertial mass. Note that it is impossible to directly perceive this ...
review of experimental concepts for studying the quantum vacuum
... In SED the origin of the ZPF comes as a direct consequence of the fundamental assumptions. SED is just the ordinary classical electrodynamics of Maxwell and Lorentz where instead of taking the homogeneous solution of the source-free differential wave equations for the electromagnetic potentials, as ...
... In SED the origin of the ZPF comes as a direct consequence of the fundamental assumptions. SED is just the ordinary classical electrodynamics of Maxwell and Lorentz where instead of taking the homogeneous solution of the source-free differential wave equations for the electromagnetic potentials, as ...
Quantum fluctuations stabilize skyrmion textures A. Rold´an-Molina
... We apply this general formalism the case of a single skyrmion an isolated skyrmion. It must be noted that in the case of an ideal crystal, a single skyrmion cannot be a stable configuration. However, isolated skyrmions are observed with STM, perhaps stabilized by some surface imperfection [14]. In F ...
... We apply this general formalism the case of a single skyrmion an isolated skyrmion. It must be noted that in the case of an ideal crystal, a single skyrmion cannot be a stable configuration. However, isolated skyrmions are observed with STM, perhaps stabilized by some surface imperfection [14]. In F ...
Is the Zero-Point Energy Real? - General Guide To Personal and
... Dirac was dissatisfied with this equation. It admitted negativeenergy solutions, but further, as a second-order equation, it appeared to him inconsistent with the basic structure of quantum mechanics. In particular the charge-current equation yielded a conserved quantity that was not positive defini ...
... Dirac was dissatisfied with this equation. It admitted negativeenergy solutions, but further, as a second-order equation, it appeared to him inconsistent with the basic structure of quantum mechanics. In particular the charge-current equation yielded a conserved quantity that was not positive defini ...
THE CASIMIR EFFECT
... Wigner-Eckart theorem to relate the matrix elements of different magnetic quantum numbers, it is easy to see that that the quantity ∆E (2) does not depend upon the orientation of the vector ~n, as intuitively expected. The physical meaning of Eq. (32) is rather clear. Classically, two neutral object ...
... Wigner-Eckart theorem to relate the matrix elements of different magnetic quantum numbers, it is easy to see that that the quantity ∆E (2) does not depend upon the orientation of the vector ~n, as intuitively expected. The physical meaning of Eq. (32) is rather clear. Classically, two neutral object ...