Quantum-Electrodynamics and the Magnetic Moment of the
... self-energy of a free electron, which arises from the virtual emission and absorption of light quanta. The electromagnetic self-energy of a free electron can be ascribed to an electromagnetic mass, which must be added to the mechanical mass of the electron. Indeed, the only meaningful statements of ...
... self-energy of a free electron, which arises from the virtual emission and absorption of light quanta. The electromagnetic self-energy of a free electron can be ascribed to an electromagnetic mass, which must be added to the mechanical mass of the electron. Indeed, the only meaningful statements of ...
QUANTROPY 1. Introduction There is a famous analogy between
... where the potential energy V depends only on the system’s position, while the kinetic energy K also depends on its velocity. Often, though not always, the kinetic energy has a minimum at velocity zero. In classical mechanics this lets us minimize energy in a two-step way. First we minimize K by sett ...
... where the potential energy V depends only on the system’s position, while the kinetic energy K also depends on its velocity. Often, though not always, the kinetic energy has a minimum at velocity zero. In classical mechanics this lets us minimize energy in a two-step way. First we minimize K by sett ...
Development of electrostatically controlled quantum Hall
... electron gas (2DEG) is quantized into Landau levels (LL), which are further split due to the presence of spin and electron-electron interactions[7]. Polarization of a 2DEG and, more importantly, of the top filled energy level, depends on the number of occupied energy levels ν = n/nφ (the filling fac ...
... electron gas (2DEG) is quantized into Landau levels (LL), which are further split due to the presence of spin and electron-electron interactions[7]. Polarization of a 2DEG and, more importantly, of the top filled energy level, depends on the number of occupied energy levels ν = n/nφ (the filling fac ...
Towards Fully Quantum Mechanical 3D Device Simulations
... in the well region than the classical Thomas-Fermi (drift-diffusion) solution which is a physically plausible result. This leads to a larger potential drop across the well region which in turn results in a higher current density J . The classical drift-diffusion solution gives J = 2.2 × 104 A/cm2 wh ...
... in the well region than the classical Thomas-Fermi (drift-diffusion) solution which is a physically plausible result. This leads to a larger potential drop across the well region which in turn results in a higher current density J . The classical drift-diffusion solution gives J = 2.2 × 104 A/cm2 wh ...
The fractional quantum Hall effect in wide quantum wells
... statistics its quasi-particle excitations are predicted to obey. Pairing of composite fermions into a p-wave superconductor is presently considered the most likely scenario for the appearance of this incompressible state. The 5/2-state is usually studied in heterostructures with a single heterointer ...
... statistics its quasi-particle excitations are predicted to obey. Pairing of composite fermions into a p-wave superconductor is presently considered the most likely scenario for the appearance of this incompressible state. The 5/2-state is usually studied in heterostructures with a single heterointer ...
koutofn
... • An extremely useful inequality in computer science (analysis of Boolean functions, hardness of approximation, learning theory, communication complexity, percolation, etc.) • Recently used by [LeeNaor04] to prove a lower bound on the distortion of embeddings into 1 spaces Amazingly, the same inequ ...
... • An extremely useful inequality in computer science (analysis of Boolean functions, hardness of approximation, learning theory, communication complexity, percolation, etc.) • Recently used by [LeeNaor04] to prove a lower bound on the distortion of embeddings into 1 spaces Amazingly, the same inequ ...
QUANTUM DOTS - Electrical and Computer Engineering
... TWO ELECTRONS, EACH FREE TO TUNNEL TO ANY SITE IN THE CELL, THESE ELECTRONS WILL TRY TO OCCUPY THE FURTHEST POSSIBLE SITE WITH RESPECT TO EACH OTHER DUE TO MUTUALELECTROSTATIC REPULSION. THEREFORE, TWO DISTINGUISHABLE CELL STATES EXIST. 2) SHOWS THE TWO POSSIBLE MINIMUM ENERGY STATES OF A QUANTUM-DO ...
... TWO ELECTRONS, EACH FREE TO TUNNEL TO ANY SITE IN THE CELL, THESE ELECTRONS WILL TRY TO OCCUPY THE FURTHEST POSSIBLE SITE WITH RESPECT TO EACH OTHER DUE TO MUTUALELECTROSTATIC REPULSION. THEREFORE, TWO DISTINGUISHABLE CELL STATES EXIST. 2) SHOWS THE TWO POSSIBLE MINIMUM ENERGY STATES OF A QUANTUM-DO ...
PDF
... In order to optimize the signal, the laser Rabi frequency ⍀L is chosen to be such that ⍀LL = , so that all the populations of state 兩1典 are excited to state 兩2典 at the end of the pulse. For the cycling transition (1-2) and a pulse focused to an area of 25 m2, the power needed for achieving this R ...
... In order to optimize the signal, the laser Rabi frequency ⍀L is chosen to be such that ⍀LL = , so that all the populations of state 兩1典 are excited to state 兩2典 at the end of the pulse. For the cycling transition (1-2) and a pulse focused to an area of 25 m2, the power needed for achieving this R ...
A quantum mechanical model of adaptive mutation
... in non-growing cells to cause a transition mutation C T. Subsequent transcription and translation of the mutant form of the gene will result in expression of the mutant phenotype. The Lowdin two-step model for generation of a mutations is initiated by a quantum tunnelling process of an H-bonded pr ...
... in non-growing cells to cause a transition mutation C T. Subsequent transcription and translation of the mutant form of the gene will result in expression of the mutant phenotype. The Lowdin two-step model for generation of a mutations is initiated by a quantum tunnelling process of an H-bonded pr ...
Thermal effects on sudden changes and freezing
... ground stateP j0i, is computed by a simple relation: dN N 2 N k1 kk 1. For example, in the case of N 2 excitations the Hamiltonian H s in Eq. (1) is decomposed in a state-basis of dimension 1 d2 , i.e., it is a 19 × 19 matrix; for six excitations, H s is represented by a 231 × 231 matri ...
... ground stateP j0i, is computed by a simple relation: dN N 2 N k1 kk 1. For example, in the case of N 2 excitations the Hamiltonian H s in Eq. (1) is decomposed in a state-basis of dimension 1 d2 , i.e., it is a 19 × 19 matrix; for six excitations, H s is represented by a 231 × 231 matri ...
Regular Structures
... • Generalizing this to a set of k spin- 1/2 particles we find that there are now 2 k basis states (quantum mechanical vectors that span a Hilbert space) corresponding say to the 2 k possible bitstrings of length k. • For example, |25> = |11001> = | | is one such state for k=5. • The dimensional ...
... • Generalizing this to a set of k spin- 1/2 particles we find that there are now 2 k basis states (quantum mechanical vectors that span a Hilbert space) corresponding say to the 2 k possible bitstrings of length k. • For example, |25> = |11001> = | | is one such state for k=5. • The dimensional ...
