Quantum Spin Hall Effect in Graphene
... R 0, though the correction to (5) is small due to carbon’s weak SO interaction. In the quantum Hall effect the bulk topological order requires the presence of gapless edge states. We now show that gapless edge states are also present in graphene. We will begin by establishing the edge states for ...
... R 0, though the correction to (5) is small due to carbon’s weak SO interaction. In the quantum Hall effect the bulk topological order requires the presence of gapless edge states. We now show that gapless edge states are also present in graphene. We will begin by establishing the edge states for ...
High angle neutron-proton scattering
... The high angle n-p scattering is interpreted has a false high angle scattering which in fact is a low angle scattering in which n and p have transmutated during the collision through the strong interactions, leading to an apparent high angle scattering. The apparent high angle (n p and p n) and ...
... The high angle n-p scattering is interpreted has a false high angle scattering which in fact is a low angle scattering in which n and p have transmutated during the collision through the strong interactions, leading to an apparent high angle scattering. The apparent high angle (n p and p n) and ...
here.
... • A point particle moving along a wire in the shape of a line or circle has one degree of freedom, namely its position (coordinate) along the wire. A point particle moving in a central force field has three degrees of freedom, we need three coordinates to specify the location of the particle. The Ea ...
... • A point particle moving along a wire in the shape of a line or circle has one degree of freedom, namely its position (coordinate) along the wire. A point particle moving in a central force field has three degrees of freedom, we need three coordinates to specify the location of the particle. The Ea ...
An experimental chemist`s guide to ab initio quantum chemistry
... accurate when compared to modern laser spectroscopic measurements, for example. Moreover, it is difficult to estimate the accuracies with which various methods will predict bond energies and lengths, excitation energies, and the like. Chemists who rely on results of quantum chemistry calculations mu ...
... accurate when compared to modern laser spectroscopic measurements, for example. Moreover, it is difficult to estimate the accuracies with which various methods will predict bond energies and lengths, excitation energies, and the like. Chemists who rely on results of quantum chemistry calculations mu ...
Paper
... smaller than the imaging optics can resolve (see Fig. 2). However, the width can be increased by decreasing the magnetic field gradient. The lowest measurable temperature will then depend on the minimum achievable gradient as well as the optical resolution, which are technical rather than fundamenta ...
... smaller than the imaging optics can resolve (see Fig. 2). However, the width can be increased by decreasing the magnetic field gradient. The lowest measurable temperature will then depend on the minimum achievable gradient as well as the optical resolution, which are technical rather than fundamenta ...
Powerpoint format
... 1. Unitary matrix operation: describes how superposition of states evolves over time when no measurement is made 2. Measurement operation: maps current superposition of states to one state based on probability = square of amplitude ci E.g. probability of seeing output bits (00) is | c1|2 R. Rao: Lec ...
... 1. Unitary matrix operation: describes how superposition of states evolves over time when no measurement is made 2. Measurement operation: maps current superposition of states to one state based on probability = square of amplitude ci E.g. probability of seeing output bits (00) is | c1|2 R. Rao: Lec ...
Novel Theory of Mathematical Pendulum Part 1
... The subject of the work has been undertaken due to inadequacy of the mathematical pendulum theory with its nature. Description of the mathematical pendulum motion does not correspond with reality. This is the general motivation of the work. Many detailed essential drawbacks of the theory have been p ...
... The subject of the work has been undertaken due to inadequacy of the mathematical pendulum theory with its nature. Description of the mathematical pendulum motion does not correspond with reality. This is the general motivation of the work. Many detailed essential drawbacks of the theory have been p ...
Electron transport in nanoscale junctions with local anharmonic modes
... role of many-body interactions (electron-phonon, electronelectron, electron-magnetic impurity) can be resolved e.g., from direct current-voltage measurements, studies of current noise, and from different types of spectroscopy, inelastic electron tunneling spectroscopy and Raman studies.1–3 Naturally ...
... role of many-body interactions (electron-phonon, electronelectron, electron-magnetic impurity) can be resolved e.g., from direct current-voltage measurements, studies of current noise, and from different types of spectroscopy, inelastic electron tunneling spectroscopy and Raman studies.1–3 Naturally ...
Bose-Glass Phases of Ultracold Atoms due to Cavity Backaction Hessam Habibian,
... Bragg diffraction is a manifestation of the wave properties of light and provides a criterion for the existence of long-range order in the scattering medium [1]. Bragg diffraction of light by atoms in optical lattices was measured for various geometries and settings, from gratings of laser-cooled at ...
... Bragg diffraction is a manifestation of the wave properties of light and provides a criterion for the existence of long-range order in the scattering medium [1]. Bragg diffraction of light by atoms in optical lattices was measured for various geometries and settings, from gratings of laser-cooled at ...
Computing prime factors with a Josephson phase qubit quantum
... this algorithm involves the challenge of combining both single- and coupled-qubit gates in a meaningful sequence. We constructed the full factoring sequence by first performing automatic calibration of the individual gates and then combined them, without additional tuning, so as to factor the compos ...
... this algorithm involves the challenge of combining both single- and coupled-qubit gates in a meaningful sequence. We constructed the full factoring sequence by first performing automatic calibration of the individual gates and then combined them, without additional tuning, so as to factor the compos ...
Optical control of the spin state of two Mn atoms... L. Besombes, C. L. Cao, S. Jamet,
... 560 μeV above the low-energy states corresponds to Mz = ±3 where S1 has flip by two units. It is very close in energy to the states Mz = ±4, corresponding to a spin flip by one unit of the Mn spin, which is the most coupled to the exciton (S2 ), 500 μeV above the low energy state. From this analysis o ...
... 560 μeV above the low-energy states corresponds to Mz = ±3 where S1 has flip by two units. It is very close in energy to the states Mz = ±4, corresponding to a spin flip by one unit of the Mn spin, which is the most coupled to the exciton (S2 ), 500 μeV above the low energy state. From this analysis o ...
Bose-Einstein condensation
... number of atoms. Although aJaH0 is typically about 10"3, N can be ~10 7 , so interactions can strongly modify the ground-state wavefunction and the ground-state energy (figure 3). This predicted dependence of the energy on the number of atoms has been verified by experiments at both Boulder and MIT. ...
... number of atoms. Although aJaH0 is typically about 10"3, N can be ~10 7 , so interactions can strongly modify the ground-state wavefunction and the ground-state energy (figure 3). This predicted dependence of the energy on the number of atoms has been verified by experiments at both Boulder and MIT. ...
Tailoring Rydberg interactions via F\" orster resonances: state
... made to enhance sought-after properties is opened up. Even more tunability is given in experiments with a mix of different atomic species [39]. Furthermore, a strong dipole coupling results in a strong state mixture [40] and may be followed by state exchange betwen the atoms [41–45]. This process is ...
... made to enhance sought-after properties is opened up. Even more tunability is given in experiments with a mix of different atomic species [39]. Furthermore, a strong dipole coupling results in a strong state mixture [40] and may be followed by state exchange betwen the atoms [41–45]. This process is ...
Confined Atoms - Frankfurt Institute for Advanced Studies
... As a final example, quantum dots can be considered as very similar to confined atoms, because they also involve confining an electron in a ‘mixed’ potential with different shortand long-range properties. Indeed, Hamiltonians have been used to represent the properties of quantum dots, which are almos ...
... As a final example, quantum dots can be considered as very similar to confined atoms, because they also involve confining an electron in a ‘mixed’ potential with different shortand long-range properties. Indeed, Hamiltonians have been used to represent the properties of quantum dots, which are almos ...
Coupling ultracold atoms to mechanical oscillators
... is highly desirable to find coupling mechanisms where the impedance mismatch does not play a role. Indeed this is possible in several schemes: A powerful method is to use a high-finesse optical cavity that incorporates both the mechanical oscillator and the atoms, such that the two systems are coupl ...
... is highly desirable to find coupling mechanisms where the impedance mismatch does not play a role. Indeed this is possible in several schemes: A powerful method is to use a high-finesse optical cavity that incorporates both the mechanical oscillator and the atoms, such that the two systems are coupl ...
Scattering Matrix Formulation of the Total Photoionization of Two
... For quantization of multidimensional bound systems, Bogomoly [14] introduced semiclassical Poincaré mapping as an analogue of the surface-of-section reduction of classical dynamics. Smilansky and coworkers [15,16] developed a scattering approach leading to a construction of exact quantum Poincaré ...
... For quantization of multidimensional bound systems, Bogomoly [14] introduced semiclassical Poincaré mapping as an analogue of the surface-of-section reduction of classical dynamics. Smilansky and coworkers [15,16] developed a scattering approach leading to a construction of exact quantum Poincaré ...
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.