Landau levels in graphene
... Graphene is certainly a rising star in material science, which recently brought Nobel Prize to Andre Geim and Konstantin Novoselov for fabrication, identification and characterization of it. The reason why this was not done before the year of 2004 is in its structure. It is a 2D mono-atomic crystal, ...
... Graphene is certainly a rising star in material science, which recently brought Nobel Prize to Andre Geim and Konstantin Novoselov for fabrication, identification and characterization of it. The reason why this was not done before the year of 2004 is in its structure. It is a 2D mono-atomic crystal, ...
Some Problems in Quantum Information Theory
... Kraus: “Two observables A and B of an n-level system (i.e., a quantum system with n-dimensional state space) are called complementary, if knowledge of the measured value of A implies maximal uncertainty of the measured value of B, and vice versa.” Also called “maximally incompatible”. ...
... Kraus: “Two observables A and B of an n-level system (i.e., a quantum system with n-dimensional state space) are called complementary, if knowledge of the measured value of A implies maximal uncertainty of the measured value of B, and vice versa.” Also called “maximally incompatible”. ...
An Introduction to Density Functional Theory
... expanding field of research. There are now many different flavours of functional available which are more or less appropriate for any particular study. Ultimately such judgments must be made in terms of results (i.e.: the direct comparison with more accurate theory or experimental data, which will b ...
... expanding field of research. There are now many different flavours of functional available which are more or less appropriate for any particular study. Ultimately such judgments must be made in terms of results (i.e.: the direct comparison with more accurate theory or experimental data, which will b ...
Short-Lived Lattice Quasiparticles for Strongly Interacting Fluids
... if we assume that τ = ∆t, which means that the quasiparticles thermalise in a single time step, we obtain B = π, yielding a bound η/s ' 0.25 h̄/kB , which is very close to the value measured in experiments for two- and three-dimensional Fermi gases at unitarity [18]. Note that in order to get Equati ...
... if we assume that τ = ∆t, which means that the quasiparticles thermalise in a single time step, we obtain B = π, yielding a bound η/s ' 0.25 h̄/kB , which is very close to the value measured in experiments for two- and three-dimensional Fermi gases at unitarity [18]. Note that in order to get Equati ...
quantum computer - Caltech Particle Theory
... Quantum algorithms Quantum computers have limitations: Spectacular quantum speedups seem to be possible only for problems with special structure, not for NP-complete problems like 3-SAT. (Quantum physics ...
... Quantum algorithms Quantum computers have limitations: Spectacular quantum speedups seem to be possible only for problems with special structure, not for NP-complete problems like 3-SAT. (Quantum physics ...
Graviton Physics
... of gravitons. Indeed, like photons, such particles are massless and subject to a gauge invariance, so that similar analytic results for graviton cross sections can be expected. Also, just as virtual photon exchange leads to a detailed understanding of electromagnetic interactions between charged sys ...
... of gravitons. Indeed, like photons, such particles are massless and subject to a gauge invariance, so that similar analytic results for graviton cross sections can be expected. Also, just as virtual photon exchange leads to a detailed understanding of electromagnetic interactions between charged sys ...
Equilibrium concentration of point defects in crystalline
... 0 K, due to its small mass and weak interaction potential. These combine to give helium enough zero-point quantum motion to prevent solidification; the large quantum effects have many other consequences for the liquid, including superfluidity and its associated striking phenomena. Quantum effects ar ...
... 0 K, due to its small mass and weak interaction potential. These combine to give helium enough zero-point quantum motion to prevent solidification; the large quantum effects have many other consequences for the liquid, including superfluidity and its associated striking phenomena. Quantum effects ar ...
cern07-lecture
... – Today: mtop=170.9+-1.8 GeV – Run 1: mtop=178+-4.3 GeV/c2 – Is this large mass telling us something about electroweak symmetry breaking? • Top yukawa coupling: •/(√2 mtop) = 0.997+-0.010
...
... – Today: mtop=170.9+-1.8 GeV – Run 1: mtop=178+-4.3 GeV/c2 – Is this large mass telling us something about electroweak symmetry breaking? • Top yukawa coupling: •
Coupled-mode theory for general free-space resonant scattering of waves
... successful in modeling a wide variety of systems that can entail any number of resonant objects weakly coupled to each other and/or to any number of incoming and outgoing ports. As long as the couplings are weak and the resonances are well defined, CMT provides an extraordinarily simple and intuitiv ...
... successful in modeling a wide variety of systems that can entail any number of resonant objects weakly coupled to each other and/or to any number of incoming and outgoing ports. As long as the couplings are weak and the resonances are well defined, CMT provides an extraordinarily simple and intuitiv ...
Power of one qumode for quantum computation Please share
... state and a single pure control qubit. However, it is unclear how to compare the resources needed for DQC1 and factoring on an equal footing since there is currently no example of both of these two problems solved using the same model. Although suggestions have been made that factoring requires more ...
... state and a single pure control qubit. However, it is unclear how to compare the resources needed for DQC1 and factoring on an equal footing since there is currently no example of both of these two problems solved using the same model. Although suggestions have been made that factoring requires more ...
Mathematical Social Sciences
... of ‘subhomogeneity’, see e.g. Burai and Száz (2005). Moreover, an increasing function such that its inverse is degressively proportional (and so it is an allocation function) is called ‘starshaped’ (with respect to the origin) in the mathematical literature. In other words, the function is degressiv ...
... of ‘subhomogeneity’, see e.g. Burai and Száz (2005). Moreover, an increasing function such that its inverse is degressively proportional (and so it is an allocation function) is called ‘starshaped’ (with respect to the origin) in the mathematical literature. In other words, the function is degressiv ...
PowerPoint Presentation - Physics 121. Lecture 21.
... • The equation of motion is the same as the equation of motion for a SHM, and the pendulum will thus carry out SHM with an angular frequency = √(g/L). • The period of the pendulum is thus 2π/ = 2π √(L/g). Note: the period is independent of the mass of the pendulum. Frank L. H. Wolfs ...
... • The equation of motion is the same as the equation of motion for a SHM, and the pendulum will thus carry out SHM with an angular frequency = √(g/L). • The period of the pendulum is thus 2π/ = 2π √(L/g). Note: the period is independent of the mass of the pendulum. Frank L. H. Wolfs ...
Similarity
... Similarity means “like something but not exactly the same”. In geometry, similarity means the same in shape but not in size. Two polygons which have the same shape are called Similar Polygons. When objects are similar, one is an accurate enlargement of the other. The symbol for similarity is ~ Let’s ...
... Similarity means “like something but not exactly the same”. In geometry, similarity means the same in shape but not in size. Two polygons which have the same shape are called Similar Polygons. When objects are similar, one is an accurate enlargement of the other. The symbol for similarity is ~ Let’s ...
Similarity
... Similarity means “like something but not exactly the same”. In geometry, similarity means the same in shape but not in size. Two polygons which have the same shape are called Similar Polygons. When objects are similar, one is an accurate enlargement of the other. The symbol for similarity is ~ Let’s ...
... Similarity means “like something but not exactly the same”. In geometry, similarity means the same in shape but not in size. Two polygons which have the same shape are called Similar Polygons. When objects are similar, one is an accurate enlargement of the other. The symbol for similarity is ~ Let’s ...
Physical reasoning - NYU Computer Science
... Qualitative calculus. The development of representations and inference techniques for numeric quantities and functions whose value and relations are specified qualitatively. These calculi are the subject of chapter 9 of this handbook and are therefore not further discussed here. Architecture. The de ...
... Qualitative calculus. The development of representations and inference techniques for numeric quantities and functions whose value and relations are specified qualitatively. These calculi are the subject of chapter 9 of this handbook and are therefore not further discussed here. Architecture. The de ...
Renormalization group
In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy scale at which physical processes occur varies, energy/momentum and resolution distance scales being effectively conjugate under the uncertainty principle (cf. Compton wavelength).A change in scale is called a ""scale transformation"". The renormalization group is intimately related to ""scale invariance"" and ""conformal invariance"", symmetries in which a system appears the same at all scales (so-called self-similarity). (However, note that scale transformations are included in conformal transformations, in general: the latter including additional symmetry generators associated with special conformal transformations.)As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally be seen to consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. These may be variable ""couplings"" which measure the strength of various forces, or mass parameters themselves. The components themselves may appear to be composed of more of the self-same components as one goes to shorter distances.For example, in quantum electrodynamics (QED), an electron appears to be composed of electrons, positrons (anti-electrons) and photons, as one views it at higher resolution, at very short distances. The electron at such short distances has a slightly different electric charge than does the ""dressed electron"" seen at large distances, and this change, or ""running,"" in the value of the electric charge is determined by the renormalization group equation.