“New Horizons in Condensed Matter Physics”
... strongly correlated quantum many-body system and also a topological quantum system due to the high-controllability of system parameters. We recently investigate behaviors of ultracold atoms in an optical Lieb lattice which has a novel band structure with a Dirac cone and a flat band [1]. In particul ...
... strongly correlated quantum many-body system and also a topological quantum system due to the high-controllability of system parameters. We recently investigate behaviors of ultracold atoms in an optical Lieb lattice which has a novel band structure with a Dirac cone and a flat band [1]. In particul ...
Interference of Bose#Einstein Condensates†
... coherent, with each atom being described in the mean-field approximation as being in a superposition of orbitals centered at the left and right wells, or if the barriers are sufficiently high that tunneling between them is negligible, it can be fragmented. The nature of the interference in these two ...
... coherent, with each atom being described in the mean-field approximation as being in a superposition of orbitals centered at the left and right wells, or if the barriers are sufficiently high that tunneling between them is negligible, it can be fragmented. The nature of the interference in these two ...
PDF
... perception, forces them out of indiscriminacy or latency. If this notion seems grotesque, let it be remembered that other sciences, indeed common sense, employ it widely. Happiness, equanimity, are observable quantities of man, but they are latent qualities which need not be present at all times; t ...
... perception, forces them out of indiscriminacy or latency. If this notion seems grotesque, let it be remembered that other sciences, indeed common sense, employ it widely. Happiness, equanimity, are observable quantities of man, but they are latent qualities which need not be present at all times; t ...
EM genius and mystery
... of a single particle the sort that Dirac was looking for initially. The combination of relativity and quantum mechanics inevitably leads to theories with unlimited numbers of particles. In such theories, the ‘true dynamical variables’ on which the wave function depends are not the position of one pa ...
... of a single particle the sort that Dirac was looking for initially. The combination of relativity and quantum mechanics inevitably leads to theories with unlimited numbers of particles. In such theories, the ‘true dynamical variables’ on which the wave function depends are not the position of one pa ...
chap 6 momentum
... Very Fast objects have Greeeeat momentum Very Massive Objects have Greeeat momentum ...
... Very Fast objects have Greeeeat momentum Very Massive Objects have Greeeat momentum ...
Connecting processing-capable quantum memories over telecommunication links via quantum frequency conversion
... be QPM for the 795 nm + 637 nm 353 nm process. Here, in order to obtain the 353 nm pump, a 1059 nm fibre laser could be used as the source. The 1059 nm laser is first frequency doubled to create a 529.5 nm light using a PPLN that is QPM for the SHG for this wavelength. The 529.5 nm light is then c ...
... be QPM for the 795 nm + 637 nm 353 nm process. Here, in order to obtain the 353 nm pump, a 1059 nm fibre laser could be used as the source. The 1059 nm laser is first frequency doubled to create a 529.5 nm light using a PPLN that is QPM for the SHG for this wavelength. The 529.5 nm light is then c ...
arXiv:quant-ph/0510223v4 1 Jun 2007 Foundations Of Quantum
... precise measurements than those mandated by the UP cannot be made. This must not be regarded as a limitation of the experimenter’s techniques, but a more intrinsic law of nature which dictates that whenever an attempt is made to measure one of a pair of canonical variables, the other is changed by a ...
... precise measurements than those mandated by the UP cannot be made. This must not be regarded as a limitation of the experimenter’s techniques, but a more intrinsic law of nature which dictates that whenever an attempt is made to measure one of a pair of canonical variables, the other is changed by a ...
Wellposedness of a nonlinear, logarithmic Schrödinger equation of
... rise to a modular type nonlinearity κQψ [6, 25], represents a field through which the electrons interact with themselves and can be interpreted as a quantum diffusion term yielding a theory which contains quantum–mechanical confinement ...
... rise to a modular type nonlinearity κQψ [6, 25], represents a field through which the electrons interact with themselves and can be interpreted as a quantum diffusion term yielding a theory which contains quantum–mechanical confinement ...
Slide 1
... In superconducting qubits, there is no obvious analog for such selection rules. Here, we consider an analog based on the symmetry of the potential U(m, p) and the interaction between: -) superconducting qubits (usual atoms) and the -) magnetic flux (electric field). Liu, You, Wei, Sun, Nori, PRL ( ...
... In superconducting qubits, there is no obvious analog for such selection rules. Here, we consider an analog based on the symmetry of the potential U(m, p) and the interaction between: -) superconducting qubits (usual atoms) and the -) magnetic flux (electric field). Liu, You, Wei, Sun, Nori, PRL ( ...
Momentum - Issaquah Connect
... In a car collision, the driver’s body must change speed from a high value to zero. This is true whether or not an airbag is used, so why use an airbag? How does it reduce injuries? Explain using momentum and impulse. The air bag increases the time over which the force is applied. Since the chang ...
... In a car collision, the driver’s body must change speed from a high value to zero. This is true whether or not an airbag is used, so why use an airbag? How does it reduce injuries? Explain using momentum and impulse. The air bag increases the time over which the force is applied. Since the chang ...
Spontaneous Formation of Magnetic Moments and Dephasing in Two-Dimensional Disordered Systems
... function is maintained - is one of the fundamental properties in quantum mechanics, and is especially important for mesoscopic systems where the coherence length is of the order of the sample size. From basic quantum mechanical arguments, one expects that as the temperature goes down the external de ...
... function is maintained - is one of the fundamental properties in quantum mechanics, and is especially important for mesoscopic systems where the coherence length is of the order of the sample size. From basic quantum mechanical arguments, one expects that as the temperature goes down the external de ...
Physics 207: Lecture 2 Notes
... This is the rotational version of FTOT = ma Torque is the rotational equivalent of force: The amount of “twist” provided by a force. A big caveat (!) – Position of force vector matters (r) Moment of inertia I is the rotational equivalent of mass. If I is big, more torque is required to achieve a giv ...
... This is the rotational version of FTOT = ma Torque is the rotational equivalent of force: The amount of “twist” provided by a force. A big caveat (!) – Position of force vector matters (r) Moment of inertia I is the rotational equivalent of mass. If I is big, more torque is required to achieve a giv ...
Effect of disorder on quantum phase transitions in
... systems, these transitions are poorly understood because many of the theoretical methods ~e.g., exact solutions, the renormalization group and e expansions! that have proven so useful for pure systems at nonzero temperatures9 are difficult to implement for disordered systems.10 These phase transitio ...
... systems, these transitions are poorly understood because many of the theoretical methods ~e.g., exact solutions, the renormalization group and e expansions! that have proven so useful for pure systems at nonzero temperatures9 are difficult to implement for disordered systems.10 These phase transitio ...
Document
... Measure of Entanglement:1. For pure bipartite state entanglement is measured by the Von Neumann entropy of any of it’s subsystems. This is the unique measure for all pure bipartite states. 2. For mixed bipartite entangled states, there is no unique way to define entanglement of a state. Two useful m ...
... Measure of Entanglement:1. For pure bipartite state entanglement is measured by the Von Neumann entropy of any of it’s subsystems. This is the unique measure for all pure bipartite states. 2. For mixed bipartite entangled states, there is no unique way to define entanglement of a state. Two useful m ...
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.