Flat spin-wave dispersion in a triangular antiferromagnet Oleg A. Starykh,
... Brillouin zone 共BZ兲. The classical dispersion does not have such local minima. The authors of Ref. 13 conjectured that the qualitative changes between the actual dispersion for S = 1 / 2 and the classical dispersion may imply that, at energies comparable to the exchange integral J, the system is bet ...
... Brillouin zone 共BZ兲. The classical dispersion does not have such local minima. The authors of Ref. 13 conjectured that the qualitative changes between the actual dispersion for S = 1 / 2 and the classical dispersion may imply that, at energies comparable to the exchange integral J, the system is bet ...
Semiconductor Physics Sectional Programme Overview
... The development of quantum cascade lasers operating at terahertz frequencies is proceeding at a very rapid pace. For their successful practical implementation, specific requirements have now to be addressed, particularly concerning the properties of the emitted radiation. Single-mode THz lasers with ...
... The development of quantum cascade lasers operating at terahertz frequencies is proceeding at a very rapid pace. For their successful practical implementation, specific requirements have now to be addressed, particularly concerning the properties of the emitted radiation. Single-mode THz lasers with ...
Daniel Adam Roberts - School of Natural Sciences
... Neumann entropy and related quantities will play a central role in what follows. However, for the purpose of the first part of the introduction, the differences between quantum and classical information are not important. ...
... Neumann entropy and related quantities will play a central role in what follows. However, for the purpose of the first part of the introduction, the differences between quantum and classical information are not important. ...
Shankar`s Principles of Quantum Mechanics
... special relativity or mechanics, a typical student about to learn quantum mechanics seldom has any familiarity with the mathematical language in which the postulates are stated. I agree with these people that this problem is real, but I differ in my belief that it should and can be overcome. This bo ...
... special relativity or mechanics, a typical student about to learn quantum mechanics seldom has any familiarity with the mathematical language in which the postulates are stated. I agree with these people that this problem is real, but I differ in my belief that it should and can be overcome. This bo ...
Schrödinger Cat State Atomic Interferometer with Heisenberg
... seminal paper, R. H. Dicke showed that such an ensemble evolves into a superposition of N + 1 symmetric states, {|E0 ⟩ , |E1 ⟩ , . . . , |EN ⟩} under conditions that each atom experiences identical motion induced Doppler shift, and Rabi frequency. We show that when these ideal conditions are breache ...
... seminal paper, R. H. Dicke showed that such an ensemble evolves into a superposition of N + 1 symmetric states, {|E0 ⟩ , |E1 ⟩ , . . . , |EN ⟩} under conditions that each atom experiences identical motion induced Doppler shift, and Rabi frequency. We show that when these ideal conditions are breache ...
Bulk Entanglement Spectrum Reveals Quantum Criticality within a
... Since a topological state is distinct from a direct product state, there is a canonical way to realize a topological phase transition: Cutting the system into disconnected blocks ...
... Since a topological state is distinct from a direct product state, there is a canonical way to realize a topological phase transition: Cutting the system into disconnected blocks ...
Multi-party Quantum Computation Adam Smith
... Secure distributed protocols have been an important and fruitful area of research for modern cryptography. In this setting, there is a group of participants who wish to perform some joint task, despite the fact that some of the participants in the protocol may cheat in order to obtain additional inf ...
... Secure distributed protocols have been an important and fruitful area of research for modern cryptography. In this setting, there is a group of participants who wish to perform some joint task, despite the fact that some of the participants in the protocol may cheat in order to obtain additional inf ...
Anti Heisenberg – Refutation of Heisenberg`s Uncertainty Principle
... world still denies the possibility to assign exact simultaneous values to (all) physical quantities. A prime example is claimed to be the fundamental and universal relationship between position and momentum of a particle. According to Heisenberg's quantum mechanical uncertainty principle for positio ...
... world still denies the possibility to assign exact simultaneous values to (all) physical quantities. A prime example is claimed to be the fundamental and universal relationship between position and momentum of a particle. According to Heisenberg's quantum mechanical uncertainty principle for positio ...
Generating random density matrices
... for a generic bi-partite interaction we create two random states on subsystems AB and CD. The key step is now to perform an orthogonal selective measurement in the maximally entangled basis on subsystems B and C. Even though the resulting pure state on the remaining subsystems A and D does depend on ...
... for a generic bi-partite interaction we create two random states on subsystems AB and CD. The key step is now to perform an orthogonal selective measurement in the maximally entangled basis on subsystems B and C. Even though the resulting pure state on the remaining subsystems A and D does depend on ...
How do you divide your (two dimensional) time? .1in SLE, CLE, the
... The continuum Gaussian free field is a “standard Gaussian” on an infinite dimensional Hilbert space. Given a planar domain D, let H(D) be the Hilbert space closure of the set of smooth, compactly supported functions on D under the conformally invariant Dirichlet inner product ...
... The continuum Gaussian free field is a “standard Gaussian” on an infinite dimensional Hilbert space. Given a planar domain D, let H(D) be the Hilbert space closure of the set of smooth, compactly supported functions on D under the conformally invariant Dirichlet inner product ...
Status Report 2011
... The progress, which the Asia Pacific Center made during last year, was less than intended, because our budget remained unchanged for the third year. Yet, for 2012 we were able to obtain a budget increase by an amount of KRW 500 million. The decision was made by the Ministry of Education, Science and ...
... The progress, which the Asia Pacific Center made during last year, was less than intended, because our budget remained unchanged for the third year. Yet, for 2012 we were able to obtain a budget increase by an amount of KRW 500 million. The decision was made by the Ministry of Education, Science and ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: