Some remarks on the Quantum Hall Effect - IPhT
... change of shape can be modeled by a surface density proportional to the normal displacement. The electrostatic potential induced by this surface density must have the correct behavior tz 2 /4 + h.c. at infinity and vanish at the boundary |z| = 1, (the normalization is such that the potential between ...
... change of shape can be modeled by a surface density proportional to the normal displacement. The electrostatic potential induced by this surface density must have the correct behavior tz 2 /4 + h.c. at infinity and vanish at the boundary |z| = 1, (the normalization is such that the potential between ...
topological phase transitions and topological
... the lowest energy levels. The important result is that the energy spectrum is not continuous, but forms bands of allowed energies with forbidden gaps in between. In an insulator, the itinerant electrons completely fill a number of bands and it takes significant energy to generate a current. In a met ...
... the lowest energy levels. The important result is that the energy spectrum is not continuous, but forms bands of allowed energies with forbidden gaps in between. In an insulator, the itinerant electrons completely fill a number of bands and it takes significant energy to generate a current. In a met ...
A class of quantum many-body states that can be efficiently simulated
... case where L is a square lattice. The structure of the MERA, however, can be adapted to a more generic lattice, with arbitrary local, geometric and topological properties, while preserving its distinctive causal structure. For instance, in D = 2 dimensions a specific MERA can be built to represent s ...
... case where L is a square lattice. The structure of the MERA, however, can be adapted to a more generic lattice, with arbitrary local, geometric and topological properties, while preserving its distinctive causal structure. For instance, in D = 2 dimensions a specific MERA can be built to represent s ...
Beyond Heisenberg`s Uncertainty Limits - CFCUL
... same state. In last the instance, the precision of the measurement, for a non-prepared system, depends on the relative size between the measurement basic apparatus and the system upon which the measurement is being done. Until now, the most basic interacting quantum device is the photon. Neverthele ...
... same state. In last the instance, the precision of the measurement, for a non-prepared system, depends on the relative size between the measurement basic apparatus and the system upon which the measurement is being done. Until now, the most basic interacting quantum device is the photon. Neverthele ...
Tailoring Quantum Architectures to Implementation Style: A
... Quantum computing is a new computing paradigm that takes advantage of distinctive properties in quantum mechanics. Quantum superposition allows quantum bits (qubits) to represent multiple states simultaneously. Whereas a classical n-bit string may possess exactly one of 2n possible values, a string ...
... Quantum computing is a new computing paradigm that takes advantage of distinctive properties in quantum mechanics. Quantum superposition allows quantum bits (qubits) to represent multiple states simultaneously. Whereas a classical n-bit string may possess exactly one of 2n possible values, a string ...
Electronic structure of rectangular quantum dots
... correspond to spin-density waves 共SDW兲 found in the weakconfinement limit of parabolic quantum dots and represent energetically stable and accurate solutions.2,14,15 Akbar and Lee16 also used the SDFT to calculate the addition energy spectrum for square quantum dots with different sizes. Until now, ...
... correspond to spin-density waves 共SDW兲 found in the weakconfinement limit of parabolic quantum dots and represent energetically stable and accurate solutions.2,14,15 Akbar and Lee16 also used the SDFT to calculate the addition energy spectrum for square quantum dots with different sizes. Until now, ...
C500 Projects
... The problem of photochemical air pollution remains a serious threat to human health and welfare. Ozone, the primary component of photochemical smog, forms from chemical reactions involving nitrogen oxides (NOx) and volatile organic compounds (VOCs) emitted from transportation, energy production, and ...
... The problem of photochemical air pollution remains a serious threat to human health and welfare. Ozone, the primary component of photochemical smog, forms from chemical reactions involving nitrogen oxides (NOx) and volatile organic compounds (VOCs) emitted from transportation, energy production, and ...
Average-Case Quantum Query Complexity
... The eld of quantum computation studies the power of computers based on quantum mechanical principles. So far, most quantum algorithms|and all physically implemented ones|have operated in the so-called black-box setting. Examples are [9, 18, 11, 7, 8]; even period- nding, which is the core of Shor's ...
... The eld of quantum computation studies the power of computers based on quantum mechanical principles. So far, most quantum algorithms|and all physically implemented ones|have operated in the so-called black-box setting. Examples are [9, 18, 11, 7, 8]; even period- nding, which is the core of Shor's ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).