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A pedagogical introduction to quantum Monte Carlo
... is not exact due to the approximate location of the trial nodes (fixed-node bias). The quality of the fixed-node approximation is very dependent on the specific system studied and on the nature of the physics involved. In some cases the result obtained can be very satisfactory [12] (at least for the ...
... is not exact due to the approximate location of the trial nodes (fixed-node bias). The quality of the fixed-node approximation is very dependent on the specific system studied and on the nature of the physics involved. In some cases the result obtained can be very satisfactory [12] (at least for the ...
Youngseok Kim, Allan H. MacDonald, and Matthew J. Gilbert , "Pseudospin Transfer Torques in Semiconductor Electron Bilayers," Physical Review B 85 , 165424 (2012).
... Nanoscale transport theory has at its heart the evaluation of the density matrix of non-interacting electrons in contact with two or more reservoirs whose chemical potentials differ. This problem is efficiently solved using Green’s function techniques, for example, by using the non-equilibrium Green ...
... Nanoscale transport theory has at its heart the evaluation of the density matrix of non-interacting electrons in contact with two or more reservoirs whose chemical potentials differ. This problem is efficiently solved using Green’s function techniques, for example, by using the non-equilibrium Green ...
Introduction to Quantum Physics
... steps of hf by absorbing and emitting photons having E = hf . We do not observe this with our eyes, because there are so many photons in common light sources that individual photons go unnoticed. (See Figure 29.8.) The next section of the text (Photon Energies and the Electromagnetic Spectrum) is de ...
... steps of hf by absorbing and emitting photons having E = hf . We do not observe this with our eyes, because there are so many photons in common light sources that individual photons go unnoticed. (See Figure 29.8.) The next section of the text (Photon Energies and the Electromagnetic Spectrum) is de ...
Quantum Theory of Chiral Interactions in Cholesteric Liquid Crystals
... interaction of Eq. ~3! arises between two chiral molecules as well as between a chiral molecule and an achiral one. Our derivation of the effective chiral interaction differs from previous ones @13,14# in two important respects. First, previous calculations of this interaction are based on a multipo ...
... interaction of Eq. ~3! arises between two chiral molecules as well as between a chiral molecule and an achiral one. Our derivation of the effective chiral interaction differs from previous ones @13,14# in two important respects. First, previous calculations of this interaction are based on a multipo ...
SEMICLASSICAL AND LARGE QUANTUM NUMBER LIMITS
... freely moving particles are reflected at infinitely hard walls, can be integrated into the scheme (3) by putting d = +∞. For bound systems the limit of high energy implies the limit of large quantum numbers. For negative degrees d, the potentials behave as inverse powers of the coordinate and vanish ...
... freely moving particles are reflected at infinitely hard walls, can be integrated into the scheme (3) by putting d = +∞. For bound systems the limit of high energy implies the limit of large quantum numbers. For negative degrees d, the potentials behave as inverse powers of the coordinate and vanish ...
Sample pages 2 PDF
... transition in rubidium, using a laser at 780 nm to excite from the 5S1/2 ground-state to the 5P3/2 excited state, and a second laser at 480 nm to couple from 5P3/2 to either nS1/2 or n D5/2,3/2 Rydberg states. The coupling strength can be expressed in terms of the Rabi frequency = −µ · E/, which ...
... transition in rubidium, using a laser at 780 nm to excite from the 5S1/2 ground-state to the 5P3/2 excited state, and a second laser at 480 nm to couple from 5P3/2 to either nS1/2 or n D5/2,3/2 Rydberg states. The coupling strength can be expressed in terms of the Rabi frequency = −µ · E/, which ...
SparkNotes: SAT Chemistry: The Structure of Matter
... fully prepared for the SAT II Chemistry test, and in this section we’ll review everything you’ll need to know. The first concept we discuss is radioactivity. Strictly speaking, radioactivity is the spontaneous disintegration of an unstable atomic nucleus and the subsequent emission of radiation. But ...
... fully prepared for the SAT II Chemistry test, and in this section we’ll review everything you’ll need to know. The first concept we discuss is radioactivity. Strictly speaking, radioactivity is the spontaneous disintegration of an unstable atomic nucleus and the subsequent emission of radiation. But ...
Multi-State Trajectory Approach to Non-Adiabatic Dynamics
... locally from the same one individual nuclear trajectory, which effectively overestimates inter-state nuclear coherence and destroy the coupled nuclear-electronic coherence. Introducing decoherence due to the Frank-Condon effect16,17,51 similar to the damping function Eq. S8c alleviates the overestim ...
... locally from the same one individual nuclear trajectory, which effectively overestimates inter-state nuclear coherence and destroy the coupled nuclear-electronic coherence. Introducing decoherence due to the Frank-Condon effect16,17,51 similar to the damping function Eq. S8c alleviates the overestim ...
Phase switching in a voltage-biased Aharonov-Bohm interferometer Vadim I. Puller
... orbitals 共interacting arm兲, whereas the dot in the other arm of the interferometer 共reference arm兲 has only one level. The chemical potential is set out of resonance, so that the transport via the interacting arm occur only by means of cotunneling processes. The reference arm can be characterized by ...
... orbitals 共interacting arm兲, whereas the dot in the other arm of the interferometer 共reference arm兲 has only one level. The chemical potential is set out of resonance, so that the transport via the interacting arm occur only by means of cotunneling processes. The reference arm can be characterized by ...
Asymptotics of repeated interaction quantum systems Laurent Bruneau , Alain Joye
... in the operator sense, where π is the rank one projection which projects onto CΩS along (CΩ∗S )⊥ . In fact, we have the following easy estimate (valid for any matrix M with spectrum inside the unit disk and satisfying (E)) Proposition 2.2 For any > 0 there exists a constant C s.t. kM m −πk ≤ C e ...
... in the operator sense, where π is the rank one projection which projects onto CΩS along (CΩ∗S )⊥ . In fact, we have the following easy estimate (valid for any matrix M with spectrum inside the unit disk and satisfying (E)) Proposition 2.2 For any > 0 there exists a constant C s.t. kM m −πk ≤ C e ...