
Memristors by Quantum Mechanics
... Polymers are enhanced by cross-linking Radical polymerization may be dismissed as enhancements are observed without photo initiators. UV cross-linking requires UV source, yet enhancement occurs even if the polymer does not UV cross-link EM = electromagnetic Only if the EM radiation reaches EUV level ...
... Polymers are enhanced by cross-linking Radical polymerization may be dismissed as enhancements are observed without photo initiators. UV cross-linking requires UV source, yet enhancement occurs even if the polymer does not UV cross-link EM = electromagnetic Only if the EM radiation reaches EUV level ...
Quantum Annealing with Markov Chain Monte Carlo Simulations
... ψ(t) = e− −1Ht ψ(0) , where H is a possibly time-dependent Hermitian matrix on Cd , which is known as the Hamiltonian of the quantum system. The Schrödinger equation shows that for the quantum system, its Hamiltonian can completely describe the dynamic evolution of its quantum states. It should be ...
... ψ(t) = e− −1Ht ψ(0) , where H is a possibly time-dependent Hermitian matrix on Cd , which is known as the Hamiltonian of the quantum system. The Schrödinger equation shows that for the quantum system, its Hamiltonian can completely describe the dynamic evolution of its quantum states. It should be ...
Analysis of General Geometric Scaling Perturbations in a Transmitting Waveguide: Fundamental Connection Between Polarization-Mode Dispersion and Group-Velocity Dispersion
... is defined to be proportional to .15 The desirable condition of zero PMD at a particular frequency then implies a zero value of the frequency derivative of the degeneracy split ⌬  e , or equivalently ⌬  e must be stationary at such a frequency. Finally, Eq. (7) permits perturbations that are, i ...
... is defined to be proportional to .15 The desirable condition of zero PMD at a particular frequency then implies a zero value of the frequency derivative of the degeneracy split ⌬  e , or equivalently ⌬  e must be stationary at such a frequency. Finally, Eq. (7) permits perturbations that are, i ...
Interaction and confinement in nanostructures: Spin
... In part I, we discuss the interplay of Rashba spin-orbit coupling in ballistic lowdimensional electron systems. In general, spin-orbit interaction connects the spin degree of freedom with the orbital motion of the electron. Since the latter is very sensitive to confinement, the questions arises how ...
... In part I, we discuss the interplay of Rashba spin-orbit coupling in ballistic lowdimensional electron systems. In general, spin-orbit interaction connects the spin degree of freedom with the orbital motion of the electron. Since the latter is very sensitive to confinement, the questions arises how ...
Interacting many-body systems in quantum wells: Evidence for
... excitons are more dynamically screened by electrons than by trions. We would like to stress that the similar amplitude of the signal changes of the trion and exciton resonances, ...
... excitons are more dynamically screened by electrons than by trions. We would like to stress that the similar amplitude of the signal changes of the trion and exciton resonances, ...
Anyons and the quantum Hall effect— A pedagogical
... L being the circumference of the ring and m the electron mass. Quantum mechanically, if the electron was initially in the ground state it stays in an eigenstate, due to adiabaticity. It does not necessarily stay in the ground state, however. As the flux is being turned on, there are points of time in ...
... L being the circumference of the ring and m the electron mass. Quantum mechanically, if the electron was initially in the ground state it stays in an eigenstate, due to adiabaticity. It does not necessarily stay in the ground state, however. As the flux is being turned on, there are points of time in ...
Quantum Structures
... relativistic formulations, to the concept of the Dirac sea of electrons, to a break between classical mechanics and quantum mechanics, to quantum field theory at a point, etc. We shall review the literature of the time showing what prominent physicists thought concerning these problems, as well as g ...
... relativistic formulations, to the concept of the Dirac sea of electrons, to a break between classical mechanics and quantum mechanics, to quantum field theory at a point, etc. We shall review the literature of the time showing what prominent physicists thought concerning these problems, as well as g ...
Charge transport modelling in electron
... types of charged particles, and particularly to electrons. These materials can accumulate charges, building up the potential inside the dielectric, meaning a potential difference between different parts of the satellite. Electrostatic Surface Discharge (ESD) can occur, leading to possible damages of ...
... types of charged particles, and particularly to electrons. These materials can accumulate charges, building up the potential inside the dielectric, meaning a potential difference between different parts of the satellite. Electrostatic Surface Discharge (ESD) can occur, leading to possible damages of ...
Non-perturbative Quantum Electrodynamics in low
... dimensional versions of QED can still excite the curiosity of theoreticians, as well as condensed matter physicists. Although interesting for their own sake, these theories provide also valuable playgrounds to study more realistic quantum field theories, as for example quantum chromodynamics. Beside ...
... dimensional versions of QED can still excite the curiosity of theoreticians, as well as condensed matter physicists. Although interesting for their own sake, these theories provide also valuable playgrounds to study more realistic quantum field theories, as for example quantum chromodynamics. Beside ...
F From Vibrating Strings to a Unified Theory of All Interactions
... energy/mass conversion occurs classically. Imagine beginning with an infinitesimally short relativistic string and stretching it out to some length L. Since the string tension is constant, the work done on the string is equal to the product T0 L of the tension times the length. This energy makes up ...
... energy/mass conversion occurs classically. Imagine beginning with an infinitesimally short relativistic string and stretching it out to some length L. Since the string tension is constant, the work done on the string is equal to the product T0 L of the tension times the length. This energy makes up ...
final report - Cordis
... information, even classical, without some chance of decoding error. But together a single use of each channel can send quantum information perfectly reliably. This proves that the zero-error classical capacity exhibits superactivation, the extreme form of the superadditivity phenomenon in which enta ...
... information, even classical, without some chance of decoding error. But together a single use of each channel can send quantum information perfectly reliably. This proves that the zero-error classical capacity exhibits superactivation, the extreme form of the superadditivity phenomenon in which enta ...
Statistical Mechanics to Disordered Quantum Optimization
... Thus, in Chapter 2, we review the classical complexity theory necessary to understand the important statement that P 6= NP and its more recent quantum generalization BQP 6= QMA. These complexity theoretic conjectures essentially assert that there exist natural classes of problems (called NP-complet ...
... Thus, in Chapter 2, we review the classical complexity theory necessary to understand the important statement that P 6= NP and its more recent quantum generalization BQP 6= QMA. These complexity theoretic conjectures essentially assert that there exist natural classes of problems (called NP-complet ...
1102 Lab 4 Electric Field
... You can get another visual representation of the electric field by selecting Directional arrows from the Field and Potential menu. In this representation all arrows are the same length and the magnitude of the field is given by its color. Try this out for a single positively charged point object. Yo ...
... You can get another visual representation of the electric field by selecting Directional arrows from the Field and Potential menu. In this representation all arrows are the same length and the magnitude of the field is given by its color. Try this out for a single positively charged point object. Yo ...
Matematiska institutionen Department of Mathematics Covering the sphere with noncontextuality inequalities
... Kochen-Specker theorem, which can be seen as a complement to Bell’s theorem. This is since they describe the same concept, but in this case for spin 1 particles instead of spin 1/2 particles. In this sense Bell’s theorem is much simpler. For all the details see the original paper Kochen and Specker ...
... Kochen-Specker theorem, which can be seen as a complement to Bell’s theorem. This is since they describe the same concept, but in this case for spin 1 particles instead of spin 1/2 particles. In this sense Bell’s theorem is much simpler. For all the details see the original paper Kochen and Specker ...
The Physical World as a Virtual Reality
... they look right, a right view is shown. Everywhere one looks, reality presents, but only when we look. Quantum theory now tells us that the same is true of our reality - that physical events only occur only when we observe them, just like in a video game. And just as when a computer game is busy the ...
... they look right, a right view is shown. Everywhere one looks, reality presents, but only when we look. Quantum theory now tells us that the same is true of our reality - that physical events only occur only when we observe them, just like in a video game. And just as when a computer game is busy the ...
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.