TIME-REVERSAL INVARIANT TOPOLOGICAL INSULATORS A
... Figure 2.2: (upper)A plot of the quantized Hall conductance in units of e2 /h of the lattice Dirac model as a function of the mass parameter m. (lower)Two schematic ˆ unit vector field for the lattice Dirac model. The left configuration plots of the d(p) has Hall conductance zero and no skyrmion cha ...
... Figure 2.2: (upper)A plot of the quantized Hall conductance in units of e2 /h of the lattice Dirac model as a function of the mass parameter m. (lower)Two schematic ˆ unit vector field for the lattice Dirac model. The left configuration plots of the d(p) has Hall conductance zero and no skyrmion cha ...
Renormalization and quantum field theory
... We give an overview of the construction of a perturbative quantum field theory from a Lagrangian. We start by translating some terms in physics into mathematical terminology. Definition 1. Spacetime is a smooth finite-dimensional metrizable manifold M, together with a “causality” relation 6 that is ...
... We give an overview of the construction of a perturbative quantum field theory from a Lagrangian. We start by translating some terms in physics into mathematical terminology. Definition 1. Spacetime is a smooth finite-dimensional metrizable manifold M, together with a “causality” relation 6 that is ...
High-Energy Physics and Reality
... Bohr and Peter Zinkernagel, I discuss how the objectivity concept might be more robust and general than some philosophers of science seem to hold. Chapter 3 is a short introduction to HEP, its relations to other branches of physics, and the current state of the art — the Standard Model. In chapter ...
... Bohr and Peter Zinkernagel, I discuss how the objectivity concept might be more robust and general than some philosophers of science seem to hold. Chapter 3 is a short introduction to HEP, its relations to other branches of physics, and the current state of the art — the Standard Model. In chapter ...
Destructive quantum interference in spin tunneling problems
... Similarly, consider any larger closed “loop” of alternating A- and B-spins within a ground-state configuration. It can be proven that any such loop contains 4n + 2 spins (n is some integer) [10]. Again one can study the tunneling between two configurations that only differ by φl → φl + π (i.e. A ↔ B ...
... Similarly, consider any larger closed “loop” of alternating A- and B-spins within a ground-state configuration. It can be proven that any such loop contains 4n + 2 spins (n is some integer) [10]. Again one can study the tunneling between two configurations that only differ by φl → φl + π (i.e. A ↔ B ...
1.1 D Landau level eigenstates
... conjugate operators with [x̂, ŷ] = 1/`2B . (Of course they aren’t literally conjugate, but as projected into one Landau level – as we’re assuming – they become conjugate.) Thus, within a Landau level, we cannot have an arbitarily definite x and y at the same time. Instead, let ϕr̄ (r) be a minimum ...
... conjugate operators with [x̂, ŷ] = 1/`2B . (Of course they aren’t literally conjugate, but as projected into one Landau level – as we’re assuming – they become conjugate.) Thus, within a Landau level, we cannot have an arbitarily definite x and y at the same time. Instead, let ϕr̄ (r) be a minimum ...
Fermionization of Spin Systems
... Furthermore this model has an important integral of motion, that permits to solve it exactly. We will apply two kinds of fermionization to this model and we will see that both render the same excitation spectrum. We will also see that, depending on the kind of information needed, the one is more use ...
... Furthermore this model has an important integral of motion, that permits to solve it exactly. We will apply two kinds of fermionization to this model and we will see that both render the same excitation spectrum. We will also see that, depending on the kind of information needed, the one is more use ...
Many-particle interference beyond many-boson and many
... whereas two bosons favor bunched, doubly occupied states. Here, we show that the collective interference of three or more particles leads to much more diverse behavior than expected from the boson–fermion dichotomy known from quantum statistical mechanics. The emerging complexity of many-particle in ...
... whereas two bosons favor bunched, doubly occupied states. Here, we show that the collective interference of three or more particles leads to much more diverse behavior than expected from the boson–fermion dichotomy known from quantum statistical mechanics. The emerging complexity of many-particle in ...
The space group classification of topological band insulators arXiv
... Topological phases of free fermionic matter are in general characterized by an insulating gap in the bulk and protected gapless modes on the boundary of the system[1, 2]. Integer quantum Hall states represent first examples of topologically protected phases in absence of any symmetries with the top ...
... Topological phases of free fermionic matter are in general characterized by an insulating gap in the bulk and protected gapless modes on the boundary of the system[1, 2]. Integer quantum Hall states represent first examples of topologically protected phases in absence of any symmetries with the top ...
Principles of Quantum Universe
... This monograph is based on papers published during last 25 years by the authors and lectures delivered by one of the authors (V.P.) at the universities of Graz (Austria), Berlin, Heidelberg, Rostock (Germany), New Delhi (India), Fairfield, the Argonne National Laboratory (USA), the physical faculty o ...
... This monograph is based on papers published during last 25 years by the authors and lectures delivered by one of the authors (V.P.) at the universities of Graz (Austria), Berlin, Heidelberg, Rostock (Germany), New Delhi (India), Fairfield, the Argonne National Laboratory (USA), the physical faculty o ...
