Quantum transport and spin effects in lateral semiconductor nanostructures and graphene Martin Evaldsson
... the microscopic world of molecular electronics, the need to name an intermediate region has come about. This region is now labelled mesoscopic, where the prefix derives from the Greek word “mesos”, which means ‘in between’. Mesoscopic systems are small enough to require a quantum mechanical descript ...
... the microscopic world of molecular electronics, the need to name an intermediate region has come about. This region is now labelled mesoscopic, where the prefix derives from the Greek word “mesos”, which means ‘in between’. Mesoscopic systems are small enough to require a quantum mechanical descript ...
Quantum Wires and Quantum Point Contacts
... the spit-gate voltage. (a) The "0.7 feature" becomes sharper with temperature increase. (b) In strong parallel magnetic fields, the spin degeneracy is removed and additional plateaus are visible at odd integers of e2/h. As B is reduced, the spin-split plateau at G = e2/h evolves into the 0.7 ...
... the spit-gate voltage. (a) The "0.7 feature" becomes sharper with temperature increase. (b) In strong parallel magnetic fields, the spin degeneracy is removed and additional plateaus are visible at odd integers of e2/h. As B is reduced, the spin-split plateau at G = e2/h evolves into the 0.7 ...
Transition probabilities and dynamic structure factor in the ASEP
... one considers realizations of the process for a duration T which for a long interval between large times t and T − t (where T − t is itself also large) have carried an atypically large flux. This extreme event quite surprisingly makes the conditioned process intrinsically related to a much simpler s ...
... one considers realizations of the process for a duration T which for a long interval between large times t and T − t (where T − t is itself also large) have carried an atypically large flux. This extreme event quite surprisingly makes the conditioned process intrinsically related to a much simpler s ...
Closed timelike curves make quantum and classical computing equivalent
... It might be thought mysterious that nature ‘finds’ a fixed point r of F: how, one might ask, does nature do this? Does nature not have to find r before the CTC computation starts, so that, in some sense, running the computation is not even necessary? While these issues are admittedly mysterious, to us ...
... It might be thought mysterious that nature ‘finds’ a fixed point r of F: how, one might ask, does nature do this? Does nature not have to find r before the CTC computation starts, so that, in some sense, running the computation is not even necessary? While these issues are admittedly mysterious, to us ...
The stability of matter in quantum mechanics, by Elliott H. Lieb and
... mathematical statement in the theory of quantum mechanics. I will describe its precise meaning below. It is somewhat surprising that stability of matter is not a subject treated in standard physics textbooks. It is however one of the most celebrated results and a cornerstone in mathematical physics. ...
... mathematical statement in the theory of quantum mechanics. I will describe its precise meaning below. It is somewhat surprising that stability of matter is not a subject treated in standard physics textbooks. It is however one of the most celebrated results and a cornerstone in mathematical physics. ...
here
... Ak j are the components of A in this basis, they may be written as entries in a matrix, with Ak j occupying the slot in the kth row and jth column. The vector that makes up the first column Ak1 is the ‘image’ of e1 (i.e. coefficients in the linear combination appearing in A|e1 i), the second column ...
... Ak j are the components of A in this basis, they may be written as entries in a matrix, with Ak j occupying the slot in the kth row and jth column. The vector that makes up the first column Ak1 is the ‘image’ of e1 (i.e. coefficients in the linear combination appearing in A|e1 i), the second column ...
Effect of quantum fluctuations on structural phase transitions in
... slightly worse agreement with experiment, the spacing between phases is more reasonable. In any case, it is clear that the quantum effects can have a substantial effect on the FE transition temperatures even up to several hundreds of degrees K, a result which was not obvious from the outset. It may ...
... slightly worse agreement with experiment, the spacing between phases is more reasonable. In any case, it is clear that the quantum effects can have a substantial effect on the FE transition temperatures even up to several hundreds of degrees K, a result which was not obvious from the outset. It may ...
Chap.4 Conceptual Modules Fishbane
... directly across the y axis from each other, do the potentials from the two charges above the y axis cancel the ones below the y axis. Follow-up: Where is V = 0 for configuration #2? ...
... directly across the y axis from each other, do the potentials from the two charges above the y axis cancel the ones below the y axis. Follow-up: Where is V = 0 for configuration #2? ...
soliloquy: a cautionary tale
... The Soliloquy primitive, first proposed by the third author in 2007, is based on cyclic lattices. It has very good efficiency properties, both in terms of public key size and the speed of encryption and decryption. There are straightforward techniques for turning Soliloquy into a key exchange or oth ...
... The Soliloquy primitive, first proposed by the third author in 2007, is based on cyclic lattices. It has very good efficiency properties, both in terms of public key size and the speed of encryption and decryption. There are straightforward techniques for turning Soliloquy into a key exchange or oth ...
Chapter 2 Oscillations and Fourier Analysis - Beck-Shop
... the velocity V given by V = ω/k. If we write, as is conventionally done, V = c/n where c is the velocity of light in vacuo, then the quantity n, originally defined for frequencies in the optical range, is the refractive index that appears in Snell’s law. This is the velocity of propagation only of t ...
... the velocity V given by V = ω/k. If we write, as is conventionally done, V = c/n where c is the velocity of light in vacuo, then the quantity n, originally defined for frequencies in the optical range, is the refractive index that appears in Snell’s law. This is the velocity of propagation only of t ...
preskill-ARO-2013 - Caltech Particle Theory
... • Progress on last year’s objectives – FY12-13 - Quantum algorithms for simulating particle collisions in fermionic quantum field theories. - Proposed quantum-resistant cryptosystem based on hardness of solving systems of quadratic equations. - Quantum circuit obfuscation schemes based on the connec ...
... • Progress on last year’s objectives – FY12-13 - Quantum algorithms for simulating particle collisions in fermionic quantum field theories. - Proposed quantum-resistant cryptosystem based on hardness of solving systems of quadratic equations. - Quantum circuit obfuscation schemes based on the connec ...
A Potassium Atom Four-Level Active Optical Clock Scheme
... quantum-limited-linewidth of active optical clocks can reach the mHz-level, and it is possible to achieve an unprecedented-linewidth laser. For the characteristic advantages of active clocks compared to passive clocks, many active clock schemes have been proposed,[16−35] and many neutral atoms with ...
... quantum-limited-linewidth of active optical clocks can reach the mHz-level, and it is possible to achieve an unprecedented-linewidth laser. For the characteristic advantages of active clocks compared to passive clocks, many active clock schemes have been proposed,[16−35] and many neutral atoms with ...
Midgap states of a two-dimensional antiferromagnetic Mott
... Doped Mott insulators [1] consisting of spin- 12 local moments exhibit a host of unconventional electronic, magnetic and optical properties [2]. These include non-Fermi- liquid transport behaviour of the metallic state, quantum spin-liquid correlations in the local moment background, and anomalous o ...
... Doped Mott insulators [1] consisting of spin- 12 local moments exhibit a host of unconventional electronic, magnetic and optical properties [2]. These include non-Fermi- liquid transport behaviour of the metallic state, quantum spin-liquid correlations in the local moment background, and anomalous o ...
Quantum field theory in curved spacetime
... symmetry of fundamental interactions. In other words, quantum fields look the same to all inertial observers. However, these symmetries are far too restrictive if quantum field theory is to be understood in the sense of general relativity. The principle of general covariance asserts that the laws of ...
... symmetry of fundamental interactions. In other words, quantum fields look the same to all inertial observers. However, these symmetries are far too restrictive if quantum field theory is to be understood in the sense of general relativity. The principle of general covariance asserts that the laws of ...
Macroscopic Quantum Tunneling in a Josephson Junction Coupled
... If we think of the JJ as a mass on a spring then perhaps it makes sense that increasing the coupling strength between it and another oscillator decreases its amplitude, since this means that the coupling spring gets stiffer. This effect is even more evident when the resonator frequency is small, sin ...
... If we think of the JJ as a mass on a spring then perhaps it makes sense that increasing the coupling strength between it and another oscillator decreases its amplitude, since this means that the coupling spring gets stiffer. This effect is even more evident when the resonator frequency is small, sin ...
Corley: Quantum Mechanics and Free Will
... means that each human is living in the only state possible. There are no alternate futures available, for electrons, humans, or anything in between. Each particle had its own function and path which could not and would never vary. But, according to the “new physics”, we see that there seem to be mul ...
... means that each human is living in the only state possible. There are no alternate futures available, for electrons, humans, or anything in between. Each particle had its own function and path which could not and would never vary. But, according to the “new physics”, we see that there seem to be mul ...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.