PHYS571: Lecture Notes Modern Atomic Physics
... In quantum optics, we are often interested in the dynamics of atoms coupled to an electromagnetic field (laser). Simple models are required to describe many of the most important features of this dynamics. In these models, the field may be described either classically or fully quantum mechanically, ...
... In quantum optics, we are often interested in the dynamics of atoms coupled to an electromagnetic field (laser). Simple models are required to describe many of the most important features of this dynamics. In these models, the field may be described either classically or fully quantum mechanically, ...
80, 030202(R) (2009)
... 关3–5兴. One of the key questions is that of fidelity of the number state, and in that regard bosons are not ideal because they rely on strong interactions to maintain a relatively large excitation gap and to suppress low-frequency excitations during the culling process. This leads us to propose inste ...
... 关3–5兴. One of the key questions is that of fidelity of the number state, and in that regard bosons are not ideal because they rely on strong interactions to maintain a relatively large excitation gap and to suppress low-frequency excitations during the culling process. This leads us to propose inste ...
Quasi Particle Tunneling in the Fractional Quantum Hall Regime
... The most common ways of achieving a 2DEG are by using a metal-oxidesemiconductor field-effect transistor (MOSFET) or a semiconducting heterostructure. The MOSFETs are not used anymore due to poor 2DEG qualities. The best 2DEGs are found in gallium arsenide/aluminium gallium arsenide (GaAs/AlGaAs) he ...
... The most common ways of achieving a 2DEG are by using a metal-oxidesemiconductor field-effect transistor (MOSFET) or a semiconducting heterostructure. The MOSFETs are not used anymore due to poor 2DEG qualities. The best 2DEGs are found in gallium arsenide/aluminium gallium arsenide (GaAs/AlGaAs) he ...
Faculty of Natural Sciences
... from informatics and medicine. It is less well known how this development is supported by scientific research. As an example a notebook computer applies numerous Nobel Prize awarded ideas, like the integrated circuits (2000), semiconducting laser (2000), liquid crystal display (1991), CCD camera (20 ...
... from informatics and medicine. It is less well known how this development is supported by scientific research. As an example a notebook computer applies numerous Nobel Prize awarded ideas, like the integrated circuits (2000), semiconducting laser (2000), liquid crystal display (1991), CCD camera (20 ...
Universal formalism of Fano resonance
... equally applicable, given that an offset can be added to the real q Fano formula, which is common in fitting experimental data.12,15,16,36,37 Our investigation also leads to an expression of the width of the resonance, which is explicitly related to the degree of localization of the close-by eigenst ...
... equally applicable, given that an offset can be added to the real q Fano formula, which is common in fitting experimental data.12,15,16,36,37 Our investigation also leads to an expression of the width of the resonance, which is explicitly related to the degree of localization of the close-by eigenst ...
Complexity Limitations on Quantum Computation 1 Introduction
... to get a relativized world where P = BQP but the polynomial-time hierarchy is infinite. We also use these techniques to give a relativized world where BQP does not have complete sets. We know that BPP ⊆ BQP. An important open question is whether or not the containment is strict. Showing the containm ...
... to get a relativized world where P = BQP but the polynomial-time hierarchy is infinite. We also use these techniques to give a relativized world where BQP does not have complete sets. We know that BPP ⊆ BQP. An important open question is whether or not the containment is strict. Showing the containm ...
Lesson#3 - INFN
... • With a large number of observed events (n>>n), the statistical fluctuations do not have a big impact in the final result; for small numbers is the opposite: small changes in the selection can produce big differences (i.e. 0 evts 2 evts) ...
... • With a large number of observed events (n>>n), the statistical fluctuations do not have a big impact in the final result; for small numbers is the opposite: small changes in the selection can produce big differences (i.e. 0 evts 2 evts) ...
Observation of oscillatory energy exchange in a coupled-atom
... states of light.18,19 Subsequent to the above-mentioned observations of phenomena related to the so-called vacuum Rabi splitting, other investigations were undertaken as well.20 Evidence of the energy-exchange frequency also appears when one looks at the photon statistics of the light transmitted by ...
... states of light.18,19 Subsequent to the above-mentioned observations of phenomena related to the so-called vacuum Rabi splitting, other investigations were undertaken as well.20 Evidence of the energy-exchange frequency also appears when one looks at the photon statistics of the light transmitted by ...
Two-magnon instabilities and other surprises in magnetized quantum antiferromagnets Oleg Starykh
... in the direction perpendicular to the field becomes broken (figure 3(c)). That lattice (and this is the case we are interested in) the ground state consistsmetry of three leads to the degeneracy multiplicity being increased up to six, as for 0 < h < hcl.The sublattices. The magnetic moments (spins) ...
... in the direction perpendicular to the field becomes broken (figure 3(c)). That lattice (and this is the case we are interested in) the ground state consistsmetry of three leads to the degeneracy multiplicity being increased up to six, as for 0 < h < hcl.The sublattices. The magnetic moments (spins) ...
JOURNAL OF CONDENSED MATTER NUCLEAR SCIENCE Experiments and Methods in Cold Fusion
... of energy −E, the second option being mathematically as valid as the first. Neglecting the second possibility just amounts to miss half of the solutions of all our equations! Thus, it is certainly correct to argue that QFT convincingly demonstrated that positive and negative energy states cannot be ...
... of energy −E, the second option being mathematically as valid as the first. Neglecting the second possibility just amounts to miss half of the solutions of all our equations! Thus, it is certainly correct to argue that QFT convincingly demonstrated that positive and negative energy states cannot be ...
entanglement properties of quantum many
... used to describe strongly correlated quantum many-body systems in condensedmatter physics, hadronic physics, and quantum chemistry. The information gained in such a program should improve our understanding of quantum phase transitions occurring in these systems as well as their behavior in regions a ...
... used to describe strongly correlated quantum many-body systems in condensedmatter physics, hadronic physics, and quantum chemistry. The information gained in such a program should improve our understanding of quantum phase transitions occurring in these systems as well as their behavior in regions a ...
7-2_similar_polygons
... Two equilateral triangles are always similar. Equilateral triangles always have three 60° angles, so the angles of one equilateral triangle are always congruent to the angles of a second equilateral triangle. The three sides of an equilateral triangle are always congruent, so the ratio of each pair ...
... Two equilateral triangles are always similar. Equilateral triangles always have three 60° angles, so the angles of one equilateral triangle are always congruent to the angles of a second equilateral triangle. The three sides of an equilateral triangle are always congruent, so the ratio of each pair ...
The Majorana bases structure and an electrically neutral spin 1/2
... , we see that the Lorentz transformations are real-valued in those bases. This property is of primary significance in the context of symmetry properties of the Majorana equation under Lorentz group in any curved space-time. In is known that in any Riemannian space-time the Dirac equation for a charg ...
... , we see that the Lorentz transformations are real-valued in those bases. This property is of primary significance in the context of symmetry properties of the Majorana equation under Lorentz group in any curved space-time. In is known that in any Riemannian space-time the Dirac equation for a charg ...
1 Introduction : Phase transitions in 2D electron systems 2
... the coherent state of the vortices induces voltage and an insulating state is reached for some critical disorder, now with different value then in the zero-field case. Although there are many succeses to the dirty-boson model, still it is lacking in explaining some features of the experiment, specia ...
... the coherent state of the vortices induces voltage and an insulating state is reached for some critical disorder, now with different value then in the zero-field case. Although there are many succeses to the dirty-boson model, still it is lacking in explaining some features of the experiment, specia ...
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.