Low-energy scattering of molecules and ions in a magnetic field
... the molecule and the ion is a few orders of magnitude larger than molecule-molecule collision rates and is almost perfectly elastic at low energy. The essential difference between the current mechanism and sympathetic cooling from atoms (e.g., Ref. [27]) is that the collisions take place at longer r ...
... the molecule and the ion is a few orders of magnitude larger than molecule-molecule collision rates and is almost perfectly elastic at low energy. The essential difference between the current mechanism and sympathetic cooling from atoms (e.g., Ref. [27]) is that the collisions take place at longer r ...
DFT - ermes@unt
... Electronic excited states determine properties such: low-energy excitations in metals, optical properties, transport, etc. In our brief overview of electronic structure methods we will focus only on ground state properties, and we will cover the basic principles underlying the computational approach ...
... Electronic excited states determine properties such: low-energy excitations in metals, optical properties, transport, etc. In our brief overview of electronic structure methods we will focus only on ground state properties, and we will cover the basic principles underlying the computational approach ...
Effective lattice models for two-dimensional
... Pauli matrices. SA is the kinetic energy of Aµ in a periodic gaussian form: qµ is integer valued field on the links of the dual lattice. Although no such term is present in the bare CP N −1 model, it will always be dynamically generated e.g. by integrating out the Zα bosons between momentum scales Λ ...
... Pauli matrices. SA is the kinetic energy of Aµ in a periodic gaussian form: qµ is integer valued field on the links of the dual lattice. Although no such term is present in the bare CP N −1 model, it will always be dynamically generated e.g. by integrating out the Zα bosons between momentum scales Λ ...
Optical Properties of Lanthanides in Condensed
... introduced by appropriate terms H1, H2, etc. in the Hamiltonian, some of the degeneracy is removed. When the ion is then placed in a condensed matrix field, all of it may be removed so that only non-degenerate states remain. The modification of the state through the influence of the interaction can ...
... introduced by appropriate terms H1, H2, etc. in the Hamiltonian, some of the degeneracy is removed. When the ion is then placed in a condensed matrix field, all of it may be removed so that only non-degenerate states remain. The modification of the state through the influence of the interaction can ...
Quantum Spin Hall Effect and their Topological Design of Devices
... sometimes referred to as cohomological field theories. Likewise, in Schwarz-type TQFTs, the correlation functions (as for example the conductance sxy) or partition functions of the system are computed by the path integral of metric independent action functionals. For instance, in the BF model, the s ...
... sometimes referred to as cohomological field theories. Likewise, in Schwarz-type TQFTs, the correlation functions (as for example the conductance sxy) or partition functions of the system are computed by the path integral of metric independent action functionals. For instance, in the BF model, the s ...
Metal
... ● Another plane that provides three additional atoms to the unit cell is situated between the top and bottom planes. The atoms in this mid-plane have as nearest neighbors atoms in both of the adjacent two planes. ...
... ● Another plane that provides three additional atoms to the unit cell is situated between the top and bottom planes. The atoms in this mid-plane have as nearest neighbors atoms in both of the adjacent two planes. ...
Quantum Hall Plateau Transitions in Disordered Superconductors
... of interest in a disordered superconductor, as emphasized in Ref. [9], involves spin and energy transport, rather than charge transport. We stress that the Hall conductance examined below is a property of quasiparticles described by a Hamiltonian such as Eq. (3). We emphasize also that since our ide ...
... of interest in a disordered superconductor, as emphasized in Ref. [9], involves spin and energy transport, rather than charge transport. We stress that the Hall conductance examined below is a property of quasiparticles described by a Hamiltonian such as Eq. (3). We emphasize also that since our ide ...
Multi-component fractional quantum Hall states in graphene: S U(4
... are strong. Also puzzling is the appearance of FQHE at 1/3; one would have expected 2 − 1/3 to be stronger given that its reference state at ν = 2 does not require any spontaneous symmetry breaking. In contrast, in the |n| = 1 LL, 2 + 1/3 and 2 + 2/3 are both observed strongly. These fractions do no ...
... are strong. Also puzzling is the appearance of FQHE at 1/3; one would have expected 2 − 1/3 to be stronger given that its reference state at ν = 2 does not require any spontaneous symmetry breaking. In contrast, in the |n| = 1 LL, 2 + 1/3 and 2 + 2/3 are both observed strongly. These fractions do no ...
Matthew Neeley, , 722 (2009); DOI: 10.1126/science.1173440
... d-dimensional Hilbert space, so that although qubits can be used to model spin-1/2 physics a qudit allows one to model spins s ≥ 1 (d ≥ 3). When rotated about a closed path (Fig. 1), a spin state |s,m〉 acquires a phase factor exp(−imW), where W is the solid angle enclosed by the path, as predicted b ...
... d-dimensional Hilbert space, so that although qubits can be used to model spin-1/2 physics a qudit allows one to model spins s ≥ 1 (d ≥ 3). When rotated about a closed path (Fig. 1), a spin state |s,m〉 acquires a phase factor exp(−imW), where W is the solid angle enclosed by the path, as predicted b ...
time, which brought them to collabo-
... magnetic field startled, elated, and confounded pioneering quantum theorists, including several who beforehand had regarded an attempt to observe space quantization as naive and foolish. Descendants of the Stern–Gerlach experiment (SGE) and its key concept of sorting quantum states via space quantiz ...
... magnetic field startled, elated, and confounded pioneering quantum theorists, including several who beforehand had regarded an attempt to observe space quantization as naive and foolish. Descendants of the Stern–Gerlach experiment (SGE) and its key concept of sorting quantum states via space quantiz ...
Wavelength locking via teleportation using distant quantum entanglement and Bloch–Siegert oscillation
... practice, however, this is not the case. The frequency of each oscillator undergoes shifts and drifts due to a host of reasons. These fluctuations lie at the heart of oscillator asynchrony. As such, minimizing the relative drifts in the frequencies is perhaps the most effective way to minimize the err ...
... practice, however, this is not the case. The frequency of each oscillator undergoes shifts and drifts due to a host of reasons. These fluctuations lie at the heart of oscillator asynchrony. As such, minimizing the relative drifts in the frequencies is perhaps the most effective way to minimize the err ...
Chapter 2 Rydberg Atoms
... which scales linearly with the dipole matrix element. For experiments where the coupling Rabi frequency is to be kept constant over a range of n, it is necessary to calculate the dipole matrix elements for the transition. Using the core potential and the energy of the 5P3/2 state1 , an approximate 5 ...
... which scales linearly with the dipole matrix element. For experiments where the coupling Rabi frequency is to be kept constant over a range of n, it is necessary to calculate the dipole matrix elements for the transition. Using the core potential and the energy of the 5P3/2 state1 , an approximate 5 ...
Electronic Structure of Atoms Chapter 6
... smallest energy change. Thus, the n=4 to n=3 transition produces the longest wavelength (lowest frequency) line. ...
... smallest energy change. Thus, the n=4 to n=3 transition produces the longest wavelength (lowest frequency) line. ...
NMR and Parity Violation Anomalous Temperature Dependence in
... Life is based on L-amino acids and D-sugars rather than the enantiomeric D-amino acids and L-sugars. This broken symmetry is now believed to be a feature of fundamental physics a result of symmetry-breaking induced by the weak force, which makes one enantiomer slightly more stable than the other. ...
... Life is based on L-amino acids and D-sugars rather than the enantiomeric D-amino acids and L-sugars. This broken symmetry is now believed to be a feature of fundamental physics a result of symmetry-breaking induced by the weak force, which makes one enantiomer slightly more stable than the other. ...
Ferromagnetism
Not to be confused with Ferrimagnetism; for an overview see Magnetism.Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (including ferrimagnetism) is the strongest type: it is the only one that typically creates forces strong enough to be felt, and is responsible for the common phenomena of magnetism in magnets encountered in everyday life. Substances respond weakly to magnetic fields with three other types of magnetism, paramagnetism, diamagnetism, and antiferromagnetism, but the forces are usually so weak that they can only be detected by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is ""the quality of magnetism first apparent to the ancient world, and to us today"".Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are other materials that are noticeably attracted to them. Only a few substances are ferromagnetic. The common ones are iron, nickel, cobalt and most of their alloys, some compounds of rare earth metals, and a few naturally-occurring minerals such as lodestone.Ferromagnetism is very important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as electromagnets, electric motors, generators, transformers, and magnetic storage such as tape recorders, and hard disks.