This article may be too technical for most readers to understand. Please help improve it to make it understandable to non-experts, without removing the technical details.(November 2014) (Learn how and when to remove this message)
Quantum Hall transitions are the quantum phase transitions that occur between different robustly quantized electronic phases of the quantum Hall effect. The robust quantization of these electronic phases is due to strong localization of electrons in their disordered, two-dimensional potential. But, at the quantum Hall transition, the electron gas delocalizes as can be observed in the laboratory. This phenomenon is understood in the language of topological field theory. Here, a vacuum angle (or 'theta angle') distinguishes between topologically different sectors in the vacuum. These topological sectors correspond to the robustly quantized phases. The quantum Hall transitions can then be understood by looking at the topological excitations (instantons) that occur between those phases.
and 28 Related for: Quantum Hall transitions information
QuantumHalltransitions are the quantum phase transitions that occur between different robustly quantized electronic phases of the quantumHall effect...
The quantumHall effect (or integer quantumHall effect) is a quantized version of the Hall effect which is observed in two-dimensional electron systems...
plasma Quantum phase transition, a phase transformation between different quantum phases QuantumHalltransitions, a quantum phase transition that occurred...
observe the quantumHall effect, in which the Hall conductance σ undergoes quantumHalltransitions to take on the quantized values. The spin Hall effect consists...
conductance and a vanishing charge-Hall conductance. The quantum spin Hall state of matter is the cousin of the integer quantumHall state, and that does not require...
other beam. Atoms are considered as quantum mechanical oscillators with a discrete energy spectrum, with the transitions between the energy eigenstates being...
transitions 1980 – Klaus von Klitzing discovers the quantumHall effect 1982 – Horst L. Stoermer and Daniel C. Tsui discover the fractional quantum Hall...
magnetic phase transitions is provided by the Ising Model Phase transitions involving solutions and mixtures are more complicated than transitions involving...
substances. Two classes of phase transitions occur: first-order transitions and second-order or continuous transitions. For the latter, the two phases...
systems such as spin liquids, and the quantumHall effect, along with potential applications to fault-tolerant quantum computation. Topological insulators...
topology-changing transitions[clarification needed], minimal possible distance scale, and other effects that challenge intuition. More technically, quantum geometry...
that quantum vortices describe the circulation of superfluid and conjectured that their excitations are responsible for superfluid phase transitions. These...
In physics, quantum tunnelling, barrier penetration, or simply tunnelling is a quantum mechanical phenomenon in which an object such as an electron or...
into account possible transitions among modes. The Landauer formula can actually be generalized to express this possible transitions G = 2 e 2 h ∑ n , m...
solid. A quantumHall state gives rise to quantized Hall voltage measured in the direction perpendicular to the current flow. A quantum spin Hall state is...
periodically modulated. QuantumHall state: A topological state of matter with quantized Hall resistance. Fractional quantumHall state: A state with fractionally...
scale where quantum effects are significant. Important applications of quantum theory include quantum chemistry, quantum optics, quantum computing, superconducting...
theoretical physics, quantum field theory (QFT) is a theoretical framework that combines classical field theory, special relativity, and quantum mechanics.: xi ...
reduced. In general charge transfer transitions result in more intense colours than d–d transitions. d–d transitions. An electron jumps from one d orbital...
φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such...
the same extent.[citation needed] Quantum decoherence explains why a system interacting with an environment transitions from being a pure state, exhibiting...
transitions allow transitions between successive members of the triplet (ΔJ = ±1) so that for each value of the rotational angular momentum quantum number...
Rosenbaum, T.F. & Sen, D. (2015). Quantum Phase Transitions in Transverse Field Spin Models: From Statistical Physics to Quantum Information. Cambridge & Delhi:...
In physics and chemistry, the spin quantum number is a quantum number (designated s) that describes the intrinsic angular momentum (or spin angular momentum...
fermions were originally envisioned in the context of the fractional quantumHall effect, but subsequently took on a life of their own, exhibiting many...
consequence of anharmonicity is that transitions such as between states n=2 and n=1 have slightly less energy than transitions between the ground state and first...