In the setup for the Borde-Chu Interferometer (BCI), the phase shift
... and spread of each wavepacket varying continuously. Yet, at the end of the single-zone excitation, there is an interference with fringe amplitudes that can reach a visibility close to unity. For such a situation, it is not clear how one would define the area of the interferometer, and therefore, wha ...
... and spread of each wavepacket varying continuously. Yet, at the end of the single-zone excitation, there is an interference with fringe amplitudes that can reach a visibility close to unity. For such a situation, it is not clear how one would define the area of the interferometer, and therefore, wha ...
Phys. Rev
... What is a quantum phase transition ? Non-analyticity in ground state properties as a function of some control parameter g ...
... What is a quantum phase transition ? Non-analyticity in ground state properties as a function of some control parameter g ...
ZAMPONI Part B2 AQUAMAN
... For the sake of concreteness, we will initially focus on some specific problems that have recently emerged in the first two fields mentioned above (namely, quantum computing and condensed matter), on which we believe that progress can be made in the short term using the quantum cavity method. These ...
... For the sake of concreteness, we will initially focus on some specific problems that have recently emerged in the first two fields mentioned above (namely, quantum computing and condensed matter), on which we believe that progress can be made in the short term using the quantum cavity method. These ...
SwissFEL Experimental Station B: Conceptual design Report
... scattering techniques to study the dynamics of cooperative interactions in crystalline materials that exhibit long-range electronic and magnetic order. Such materials also show complex phase diagrams. A important class are strongly correlated electron systems or ’quantum materials’ that exhibit comp ...
... scattering techniques to study the dynamics of cooperative interactions in crystalline materials that exhibit long-range electronic and magnetic order. Such materials also show complex phase diagrams. A important class are strongly correlated electron systems or ’quantum materials’ that exhibit comp ...
cond-mat/0403148 PDF
... compound. For our Pr0.5Ca0.5MnO3 case, the ρ − T behaviors and the deviation of the electronic conduction mechanism from VRH with increasing field can be explained by the phase separation model. For H=0T, the CO/AFM phase dominates the physics. The electronic hopping is, thus, governed by the VRH. T ...
... compound. For our Pr0.5Ca0.5MnO3 case, the ρ − T behaviors and the deviation of the electronic conduction mechanism from VRH with increasing field can be explained by the phase separation model. For H=0T, the CO/AFM phase dominates the physics. The electronic hopping is, thus, governed by the VRH. T ...
Statistical Physics
... are definitely described by quite different Hamilton operators that encode their quantum mechanics. How can it be that important macroscopic properties do not depend on the details of the Hamiltonian? Phase transitions are also universal: Magnetism and the liquid–vapor transition belong to the same ...
... are definitely described by quite different Hamilton operators that encode their quantum mechanics. How can it be that important macroscopic properties do not depend on the details of the Hamiltonian? Phase transitions are also universal: Magnetism and the liquid–vapor transition belong to the same ...
Electronic properties of the conducting form of
... derivatives of the absorption spectrum have been scaled up so that a direct comparison between both derivatives and the lineshape of the electroabsorption spectrum (solid line) can be made. The scaling factors used are given in the ®gure legend. This ®gure demonstrates that the dominant contribution ...
... derivatives of the absorption spectrum have been scaled up so that a direct comparison between both derivatives and the lineshape of the electroabsorption spectrum (solid line) can be made. The scaling factors used are given in the ®gure legend. This ®gure demonstrates that the dominant contribution ...
Glass transition - certev.ufscar.br.
... temperatures, and the corresponding enthalpy and entropy changes, and characterization of glass transition and other effects that show either changes in heat capacity or a latent heat. A DSC analyzer measures the energy changes that occur as a sample is heated, cooled or held isothermally, together ...
... temperatures, and the corresponding enthalpy and entropy changes, and characterization of glass transition and other effects that show either changes in heat capacity or a latent heat. A DSC analyzer measures the energy changes that occur as a sample is heated, cooled or held isothermally, together ...
For Negative half cycle
... terminal ‘a’ to SCR1,the node resistance RL and back to the centre tap of the transformer. This current continues to flow up to the angle Π when the line voltage reverses its polarity and SCR1 is turned off. ...
... terminal ‘a’ to SCR1,the node resistance RL and back to the centre tap of the transformer. This current continues to flow up to the angle Π when the line voltage reverses its polarity and SCR1 is turned off. ...
Statistical Mechanics Exam. 21.2.91 1.a)The following reaction occurs inside a star
... d) In three dimensions V(|rirj|) is defined as above with r the position vector. Comment on the form of the free energy. 4. Consider a ferromagnet with magnetic moments m(r) on a simple cubic lattice interacting with their nearest neighbors. The ferromagnetic coupling is J and the lattice constant ...
... d) In three dimensions V(|rirj|) is defined as above with r the position vector. Comment on the form of the free energy. 4. Consider a ferromagnet with magnetic moments m(r) on a simple cubic lattice interacting with their nearest neighbors. The ferromagnetic coupling is J and the lattice constant ...
Outline - Concordia University
... • Soft and relatively easy to deform γ -austenite - solid solution of C in …….. Fe • The maximum solubility of C is 2.14 wt % at 1147°C. • Interstitial lattice positions are much larger than ferrite (higher C%) • Is not stable below the eutectic temperature (727 °C) unless cooled rapidly (Chapter 10 ...
... • Soft and relatively easy to deform γ -austenite - solid solution of C in …….. Fe • The maximum solubility of C is 2.14 wt % at 1147°C. • Interstitial lattice positions are much larger than ferrite (higher C%) • Is not stable below the eutectic temperature (727 °C) unless cooled rapidly (Chapter 10 ...
Inelastic collisions of electrons with noble-gas ions
... the helium-ion E F resonance line (A = 30.4 nm). Its position correlates in energy with the positions of the autoionizing He-atom states that converge to an He level with n = 3. The main channel of their decay, as shown in Ref. 11, is electron decay to lower helium-ion excited n = 2 levels, while th ...
... the helium-ion E F resonance line (A = 30.4 nm). Its position correlates in energy with the positions of the autoionizing He-atom states that converge to an He level with n = 3. The main channel of their decay, as shown in Ref. 11, is electron decay to lower helium-ion excited n = 2 levels, while th ...
Document
... The shop was well insured and so the Insurance company also have an interest Eoin, Lorna and Shane returned immediately and were interviewed. Items they had with them which could possibly act as a fire accelerant are shown below. ...
... The shop was well insured and so the Insurance company also have an interest Eoin, Lorna and Shane returned immediately and were interviewed. Items they had with them which could possibly act as a fire accelerant are shown below. ...
Electrofreezing of confined water
... applicability for ice nucleation and could also operate in other known ice nucleators such as silver iodide. In computer simulation, upon reducing the temperature, phase trajectories tend to become trapped into a region of metastable glassy states.11 The glassy state prevents, within the time scale ...
... applicability for ice nucleation and could also operate in other known ice nucleators such as silver iodide. In computer simulation, upon reducing the temperature, phase trajectories tend to become trapped into a region of metastable glassy states.11 The glassy state prevents, within the time scale ...
Physical Properties of the NbC Carbide
... devices [1]. This combination of physical properties indicates a complex chemical bonding between the metallic element and carbon, and yet, the crystalline structure of the carbides is simple, typically of the NaCl type or hexagonal, as is observed for the carbides of the early transition metals Gro ...
... devices [1]. This combination of physical properties indicates a complex chemical bonding between the metallic element and carbon, and yet, the crystalline structure of the carbides is simple, typically of the NaCl type or hexagonal, as is observed for the carbides of the early transition metals Gro ...
1 Dielectric Properties of Polar Oxides Abstract 1.1 - Wiley-VCH
... importance in semiconductor field-effect devices, they also occur in ceramics with electrically conducting grains and insulating grain boundaries (so-called Maxwell-Wagner polarization). • Domain wall polarization plays a decisive role in ferroelectric materials and contributes to the overall dielec ...
... importance in semiconductor field-effect devices, they also occur in ceramics with electrically conducting grains and insulating grain boundaries (so-called Maxwell-Wagner polarization). • Domain wall polarization plays a decisive role in ferroelectric materials and contributes to the overall dielec ...
Solidification of viscous melts: the interplay between nanoscale physics and macroscopic behaviour
... to the order-parameter relaxation scale. The ‘interpolating function’ p(φ) increases monotonically from 0 to 1 as φ goes from liquid to solid values. (The obvious choice p = φ is inconvenient because it does not keep the liquid and solid phases at φ = 0 and 1 for all undercoolings.) In Eq. 5, the φ ...
... to the order-parameter relaxation scale. The ‘interpolating function’ p(φ) increases monotonically from 0 to 1 as φ goes from liquid to solid values. (The obvious choice p = φ is inconvenient because it does not keep the liquid and solid phases at φ = 0 and 1 for all undercoolings.) In Eq. 5, the φ ...
Voltage Control of Metal-insulator Transition and Non-volatile Ferroelastic
... lattice mismatch with the substrate or buffer layer, the transition temperature and the structural distortion are remarkably changed due to the modification of orbital occupancy7. Applying an external bending force on a free-standing single crystal VO2 beam results in the ordered arrays of metallic ...
... lattice mismatch with the substrate or buffer layer, the transition temperature and the structural distortion are remarkably changed due to the modification of orbital occupancy7. Applying an external bending force on a free-standing single crystal VO2 beam results in the ordered arrays of metallic ...
On the dynamics of charged particles around rotating magnetic
... We achieve the transformation to the new dynamical system in three steps. First, by assuming that the perturbation is weak compared to the Keplerian term, we apply the Delaunay normalisation [4] up to first order. Thus, we obtain the averaged (or normalised) Hamiltonian with a new formal integral L ...
... We achieve the transformation to the new dynamical system in three steps. First, by assuming that the perturbation is weak compared to the Keplerian term, we apply the Delaunay normalisation [4] up to first order. Thus, we obtain the averaged (or normalised) Hamiltonian with a new formal integral L ...
Ferroelectrics from first principles Designing ferroelectrics
... coupling of two types of Soctahedron ferroelectricity has been theoretically predicted in ordered perovskites and the Ruddlesden–Popper compounds (Ca3 Ti2 O7 , Ca3 Mn2 O7 and (Ca/Sr/Ba)3 (Sn/Zr/Ge)2 O7 ). However, the ferroelectricity of these compounds has never been experimentally confirmed and ev ...
... coupling of two types of Soctahedron ferroelectricity has been theoretically predicted in ordered perovskites and the Ruddlesden–Popper compounds (Ca3 Ti2 O7 , Ca3 Mn2 O7 and (Ca/Sr/Ba)3 (Sn/Zr/Ge)2 O7 ). However, the ferroelectricity of these compounds has never been experimentally confirmed and ev ...
Nonlocal Photorefractive Screening from Hot Electron Velocity Saturation in Semiconductors
... ration fields in each of the structures follow a monotonic decreasing trend from the GaAs epilayer, through the multiple quantum well to the AlGaAs epilayer, reflecting the monotonic trend in the G-L energy separation. Although the experiments were performed at highmodulation depth to obtain a good ...
... ration fields in each of the structures follow a monotonic decreasing trend from the GaAs epilayer, through the multiple quantum well to the AlGaAs epilayer, reflecting the monotonic trend in the G-L energy separation. Although the experiments were performed at highmodulation depth to obtain a good ...
Time-dependent perturbation
... The interaction picture is a half way between the Schrödinger and Heisenberg pictures, and is particularly suited to develop the perturbation theory. It is also called the Dirac picture. It tries to discard the “trivial” time-dependence due to the unperturbed Hamiltonian which is by assumption exac ...
... The interaction picture is a half way between the Schrödinger and Heisenberg pictures, and is particularly suited to develop the perturbation theory. It is also called the Dirac picture. It tries to discard the “trivial” time-dependence due to the unperturbed Hamiltonian which is by assumption exac ...
Magnetisation and Susceptibilty
... The ferromagnetic behaviour of hematite-αF e2 O3 was sucessfully illustrated with its hysteresis. Where it’s remanence is was found to be quite large. The “virgin curve”, however, was not observed. The reason this did not happen may be because the hematite-αF e2 O3 retained some of it’s reamanence f ...
... The ferromagnetic behaviour of hematite-αF e2 O3 was sucessfully illustrated with its hysteresis. Where it’s remanence is was found to be quite large. The “virgin curve”, however, was not observed. The reason this did not happen may be because the hematite-αF e2 O3 retained some of it’s reamanence f ...
Orbital Specific Charge Transfer Distances, Solvent Reorganization
... and calculated (fit) Stark spectra are characterized by significant second derivative contributions, indicating that significant changes in dipole moment and, therefore, significant charge transfer accompany the optical excitations. Quantitatively, the parallel and orthogonal charge transfers are ch ...
... and calculated (fit) Stark spectra are characterized by significant second derivative contributions, indicating that significant changes in dipole moment and, therefore, significant charge transfer accompany the optical excitations. Quantitatively, the parallel and orthogonal charge transfers are ch ...
Quantum Criticality - Subir Sachdev
... If we expand out the product in Eq. (2), we obtain an equal superposition of all 2N states of the N qubits: a fact that is put to good use in quantum computing applications. Unlike the states in Eq. (1), the state in Eq. (2) is invariant under the interchange of | ↑ij and | ↓ij , and so it does not ...
... If we expand out the product in Eq. (2), we obtain an equal superposition of all 2N states of the N qubits: a fact that is put to good use in quantum computing applications. Unlike the states in Eq. (1), the state in Eq. (2) is invariant under the interchange of | ↑ij and | ↓ij , and so it does not ...
Phase transition
A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another one by heat transfer. The term is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma. A phase of a thermodynamic system and the states of matter have uniform physical properties. During a phase transition of a given medium certain properties of the medium change, often discontinuously, as a result of the change of some external condition, such as temperature, pressure, or others. For example, a liquid may become gas upon heating to the boiling point, resulting in an abrupt change in volume. The measurement of the external conditions at which the transformation occurs is termed the phase transition. Phase transitions are common in nature and used today in many technologies.