Physics 2000
... of physics. Although often frustrating, physics in the last decimal place has a beauty of its own, as those who practice it will confirm. We are taught to do our physics by isolating the variables. In the last decimal place, however, one never knows what other physics will intrude on this sound prin ...
... of physics. Although often frustrating, physics in the last decimal place has a beauty of its own, as those who practice it will confirm. We are taught to do our physics by isolating the variables. In the last decimal place, however, one never knows what other physics will intrude on this sound prin ...
Electron driven reactions in sulphur containing biological
... genotoxic effects can result in higher sensitivity of tumour cells to radiation via two strategies: (1) making DNA more sensitive to LEEs through radiosensitizers and (2) increasing the number of LEEs near the DNA. Because low energy electrons have a range of about 5 times the diameter of the DNA he ...
... genotoxic effects can result in higher sensitivity of tumour cells to radiation via two strategies: (1) making DNA more sensitive to LEEs through radiosensitizers and (2) increasing the number of LEEs near the DNA. Because low energy electrons have a range of about 5 times the diameter of the DNA he ...
V. Discussion
... The RPA current-voltage and derivative curves in Fig. 8 through 11 show a comparison of the helicon thruster operating with pure argon or water vapor and argon or water vapor mixed with helium. The plots for 100% argon and 75% argon with 25% helium (by number) in Fig. 8 and 9 show the average of fiv ...
... The RPA current-voltage and derivative curves in Fig. 8 through 11 show a comparison of the helicon thruster operating with pure argon or water vapor and argon or water vapor mixed with helium. The plots for 100% argon and 75% argon with 25% helium (by number) in Fig. 8 and 9 show the average of fiv ...
Quantum Hall Effects and Related Topics International Symposium
... Sankar Das Sarma (University of Maryland, USA) Rui-Rui Du (Rice University, USA) Jim Eisenstein (California Institute of Technology (Caltech), USA) Andre Geim (University of Manchester, UK) Moty Heiblum (Weizmann Institute of Science, Israel) Harold Hwang (Stanford University, USA) Jainendra Jain (P ...
... Sankar Das Sarma (University of Maryland, USA) Rui-Rui Du (Rice University, USA) Jim Eisenstein (California Institute of Technology (Caltech), USA) Andre Geim (University of Manchester, UK) Moty Heiblum (Weizmann Institute of Science, Israel) Harold Hwang (Stanford University, USA) Jainendra Jain (P ...
Optical Properties of Semiconductor Quantum Dots
... strongly modifies the energy spectrum of carriers, in a way that is appreciable at the relatively high temperatures of a few Kelvin. Because of confinement, electrons in quantum dots occupy discrete energy levels, in a similar way as they do in atoms. For these reasons quantum dots are also called a ...
... strongly modifies the energy spectrum of carriers, in a way that is appreciable at the relatively high temperatures of a few Kelvin. Because of confinement, electrons in quantum dots occupy discrete energy levels, in a similar way as they do in atoms. For these reasons quantum dots are also called a ...
Sub-keV ring current ions as the tracer of substorm injection
... While data from orbit 1113 (coverage >58 invariant latitude (ILat)) does not show any signature of sub-keV ions equatorward of the boundary layer (here we use a broad sense of “boundary layer” either with magnetosheath-like ions or keV ions with structures, see Woch and Lundin, 1993, and Kremser and ...
... While data from orbit 1113 (coverage >58 invariant latitude (ILat)) does not show any signature of sub-keV ions equatorward of the boundary layer (here we use a broad sense of “boundary layer” either with magnetosheath-like ions or keV ions with structures, see Woch and Lundin, 1993, and Kremser and ...
Information and Entropy in Neural Networks and Interacting Systems
... network and why a generalization of the definition of entropy may be required. Like neural networks, large ensembles of similar units that interact also need a generalization of classical information-theoretic concepts. We extend the concept of Shannon entropy in a novel way, which may be relevant w ...
... network and why a generalization of the definition of entropy may be required. Like neural networks, large ensembles of similar units that interact also need a generalization of classical information-theoretic concepts. We extend the concept of Shannon entropy in a novel way, which may be relevant w ...
Chapter 28 The Atom
... the atom. He pictured the negatively charged electrons as being distributed throughout this positively charged substance like raisins in a muffin. Ernest Rutherford, along with laboratory collaborators Hans Geiger and Ernest Marsden, however, performed a series of experiments that showed the atom ha ...
... the atom. He pictured the negatively charged electrons as being distributed throughout this positively charged substance like raisins in a muffin. Ernest Rutherford, along with laboratory collaborators Hans Geiger and Ernest Marsden, however, performed a series of experiments that showed the atom ha ...
Introduction to Quantum Information and Computation for Chemistry
... Throughout history, man has learned to build tools to aid computation. From abacuses to digital microprocessors, these tools epitomize the fact that laws of physics support computation. Therefore, a natural question arises: “Which physical laws can we use for computation?” For a long period of time, ...
... Throughout history, man has learned to build tools to aid computation. From abacuses to digital microprocessors, these tools epitomize the fact that laws of physics support computation. Therefore, a natural question arises: “Which physical laws can we use for computation?” For a long period of time, ...
Quantising the electromagnetic field near a semi
... The possible absorption of light in the mirror surface is in the following taken into account. Our only assumption is that the mirror surface does no alter the coherent properties of the incoming light. It only reduces the amplitude of incoming wave packets. Before quantising the electromagnetic fie ...
... The possible absorption of light in the mirror surface is in the following taken into account. Our only assumption is that the mirror surface does no alter the coherent properties of the incoming light. It only reduces the amplitude of incoming wave packets. Before quantising the electromagnetic fie ...
Distances in Probability Space and the Statistical Complexity
... One could raise the objection that this SCM is just a simple function of the entropy. As a consequence, it might not contain new information vis-a-vis the measure of order. Such an objection is discussed at length in [28–30]. We stress the fact that the remaining members of the family C (ν (ν = E, W ...
... One could raise the objection that this SCM is just a simple function of the entropy. As a consequence, it might not contain new information vis-a-vis the measure of order. Such an objection is discussed at length in [28–30]. We stress the fact that the remaining members of the family C (ν (ν = E, W ...
Helium atom - ChaosBook.org
... and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step too much at a time; we all know how rich and complicated the dynamics of the three-b ...
... and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step too much at a time; we all know how rich and complicated the dynamics of the three-b ...
Helium atom - ChaosBook.org
... and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step too much at a time; we all know how rich and complicated the dynamics of the three-b ...
... and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step too much at a time; we all know how rich and complicated the dynamics of the three-b ...
The effect of Kondo correlations on the absorption spectrum of
... trapped inside the InAs quantum dots. After the electron-hole pair is trapped, the electron and the hole relax into the lowest lying states. b) In the recombination process, an electron recombines with a hole, whereby a photon is emitted. c) The figure shows a spin-flip process, where an electron ho ...
... trapped inside the InAs quantum dots. After the electron-hole pair is trapped, the electron and the hole relax into the lowest lying states. b) In the recombination process, an electron recombines with a hole, whereby a photon is emitted. c) The figure shows a spin-flip process, where an electron ho ...
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.