Presentism and Quantum Gravity
... Fixed foliation quantum gravity is compatible with presentism. To show this, it will be helpful to utilize the semantic view of scientific theories (see for example van Fraassen 1987). A scientific theory is taken to have two parts, the theoretical structure and the theoretical hypotheses. The theor ...
... Fixed foliation quantum gravity is compatible with presentism. To show this, it will be helpful to utilize the semantic view of scientific theories (see for example van Fraassen 1987). A scientific theory is taken to have two parts, the theoretical structure and the theoretical hypotheses. The theor ...
Giovannini, D., Romero, J., Leach, J., Dudley, A, Forbes, A, and
... entanglement of high-dimensional states provides implementations of QKD that are more tolerant to eavesdropping and can improve the bit rate in other quantum communication protocols [23–28]. One of the advantages of OAM is the ability to access d-dimensional subspaces [29], for each of which we can ...
... entanglement of high-dimensional states provides implementations of QKD that are more tolerant to eavesdropping and can improve the bit rate in other quantum communication protocols [23–28]. One of the advantages of OAM is the ability to access d-dimensional subspaces [29], for each of which we can ...
Interpretation of quantum mechanics by the double solution theory
... and as they already knew that light may skirt around the edge of a screen, they considered this edge as exerting a force on the light particles which happened to pass in its neighbourhood. Under a more elaborate form, here again we find a similar idea. Let us now consider Klein-Gordon’s equation and ...
... and as they already knew that light may skirt around the edge of a screen, they considered this edge as exerting a force on the light particles which happened to pass in its neighbourhood. Under a more elaborate form, here again we find a similar idea. Let us now consider Klein-Gordon’s equation and ...
On the Essence of Electric Charge
... To explain the quantization of charge we suggest considering the elementary charge to be, not only a contraction or dilation of space (see Part 1), but a black or white (respectively) hole. Thus the radius of the elementary charge is related to the Schwarzschild radius. This consideration, as we sho ...
... To explain the quantization of charge we suggest considering the elementary charge to be, not only a contraction or dilation of space (see Part 1), but a black or white (respectively) hole. Thus the radius of the elementary charge is related to the Schwarzschild radius. This consideration, as we sho ...
... The Quantum Mechanics of Biological Molecules Your recollections of quantum mechanics may be of a theory that could qualitatively explain many phenomena but which only provided exact quantitative results for a very small number of systems, generally those containing a single particle. It may therefo ...
Influence of Complex Exciton-Phonon Coupling on Optical
... In the following we will take the width ∆ (standard deviation) of this monomer spectrum as the unit of energy (for organic dyes ∆ is in the order of 0.1 eV). The vibrational progression due to the high-energy modes with energies around 1.5 ∆ in the spectral density (see Fig. 1) is clearly visible. T ...
... In the following we will take the width ∆ (standard deviation) of this monomer spectrum as the unit of energy (for organic dyes ∆ is in the order of 0.1 eV). The vibrational progression due to the high-energy modes with energies around 1.5 ∆ in the spectral density (see Fig. 1) is clearly visible. T ...
LONG JOURNEY INTO TUNNELING
... In this study, we first obtained a backward diode which was more conductive in the reverse direction than in the forward direction. In this respect it agreed with the rectification direction predicted by the previously-mentioned old tunneling rectifier theory. The calculated junction width at zero b ...
... In this study, we first obtained a backward diode which was more conductive in the reverse direction than in the forward direction. In this respect it agreed with the rectification direction predicted by the previously-mentioned old tunneling rectifier theory. The calculated junction width at zero b ...
Electrical current carried by neutral quasiparticles - KITP
... local current density is proportional to the local momentum density, J(x)⫽(e/m)P(x). The conservation of total momentum then implies conservation of the total current, (d/dt)J ⫽0. This is a stronger condition than charge conservation, (d/dt) ⫹ⵜ•J⫽0, since it implies that the real part of the condu ...
... local current density is proportional to the local momentum density, J(x)⫽(e/m)P(x). The conservation of total momentum then implies conservation of the total current, (d/dt)J ⫽0. This is a stronger condition than charge conservation, (d/dt) ⫹ⵜ•J⫽0, since it implies that the real part of the condu ...
MasteringPhysics: Assignment Print View
... was one free electron, now there are two! Each of these can then accelerate, hit a molecule, and kick out another electron. Then there will be four free electrons. In other words, as the figure shows, a sufficiently strong electric field causes a "chain reaction" of electron production. This is call ...
... was one free electron, now there are two! Each of these can then accelerate, hit a molecule, and kick out another electron. Then there will be four free electrons. In other words, as the figure shows, a sufficiently strong electric field causes a "chain reaction" of electron production. This is call ...
The Need for Structure in Quantum Speedups
... and Q(f ) are both tiny but D(f ) is huge. As an example, consider the Deutsch-Jozsa problem [17]: given a Boolean input (x1 , . . . , xN ), decide whether the xi ’s are all equal or whether half of them are 1 and the other half are 0, under the promise that one of these is the case. Second, if M = ...
... and Q(f ) are both tiny but D(f ) is huge. As an example, consider the Deutsch-Jozsa problem [17]: given a Boolean input (x1 , . . . , xN ), decide whether the xi ’s are all equal or whether half of them are 1 and the other half are 0, under the promise that one of these is the case. Second, if M = ...
Danish-Sino Workshop on Strongly Interacting Cold Atomic Gases
... Bosons interacting repulsively on a lattice with a flat lowest band energy dispersion may, at sufficiently small filling factors, enter into a Wigner-crystal-like phase. This phase is a consequence of the dispersionless nature of the system, which in turn implies the occurrence of single-particle lo ...
... Bosons interacting repulsively on a lattice with a flat lowest band energy dispersion may, at sufficiently small filling factors, enter into a Wigner-crystal-like phase. This phase is a consequence of the dispersionless nature of the system, which in turn implies the occurrence of single-particle lo ...
Electronic quantum optics beyond the integer quantum Hall effect
... edge states carrying electrons with opposite spin appear on each side of the Hall bar [18]. In this situation (with or without spin flip processes at the QPC), it is possible to study the interplay between Fermi statistics and time-reversal symmetry (TRS) using HOM interferometry, with two or even t ...
... edge states carrying electrons with opposite spin appear on each side of the Hall bar [18]. In this situation (with or without spin flip processes at the QPC), it is possible to study the interplay between Fermi statistics and time-reversal symmetry (TRS) using HOM interferometry, with two or even t ...
PDF
... Linear optical quantum computation (LOQC) has recently attracted great interests following the demonstration [1] that a scalable quantum computer based on linear optical components is possible. It has also been known that linear optical systems could achieve non-scalable quantum computation by encod ...
... Linear optical quantum computation (LOQC) has recently attracted great interests following the demonstration [1] that a scalable quantum computer based on linear optical components is possible. It has also been known that linear optical systems could achieve non-scalable quantum computation by encod ...
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.