Majorana Fermions - Physics | Oregon State University
... Majorana fermions. Ideal probes of these excitations are inelastic neutron scattering experiments. These we report here for a ruthenium-based material, α-RuCl3, continuing a major search (so far concentrated on iridium materials) for realizations of the celebrated Kitaev honeycomb topological QSL. O ...
... Majorana fermions. Ideal probes of these excitations are inelastic neutron scattering experiments. These we report here for a ruthenium-based material, α-RuCl3, continuing a major search (so far concentrated on iridium materials) for realizations of the celebrated Kitaev honeycomb topological QSL. O ...
Complete Axiomatizations for Quantum Actions
... propositional logic with a finitary syntax axiomatized by a finite set of inference rules. But this approach will of course involve a dynamic interpretation of the “logistic” view, and this will be reflected in the more complex syntax of Quantum Dynamic Logic: as in P DL, the syntax will have two si ...
... propositional logic with a finitary syntax axiomatized by a finite set of inference rules. But this approach will of course involve a dynamic interpretation of the “logistic” view, and this will be reflected in the more complex syntax of Quantum Dynamic Logic: as in P DL, the syntax will have two si ...
A Quantum Version of The Spectral Decomposition Theorem of
... as mentioned in [2], the study of chaos based on QEH takes into account that classical limit may not exhibit chaotic behavior which would be a threat to Correspondence Principle (CP). In paper [25] we discuss and give an alternative way to study chaos in quantum systems based on fundamental grainine ...
... as mentioned in [2], the study of chaos based on QEH takes into account that classical limit may not exhibit chaotic behavior which would be a threat to Correspondence Principle (CP). In paper [25] we discuss and give an alternative way to study chaos in quantum systems based on fundamental grainine ...
Quantum Field Theory Frank Wilczek
... The eld concept came to dominate physics starting with the work of Faraday in the mid-nineteenth century. Its conceptual advantage over the earlier Newtonian program of physics, to formulate the fundamental laws in terms of forces among atomic particles, emerges when we take into account the circum ...
... The eld concept came to dominate physics starting with the work of Faraday in the mid-nineteenth century. Its conceptual advantage over the earlier Newtonian program of physics, to formulate the fundamental laws in terms of forces among atomic particles, emerges when we take into account the circum ...
Powerpoint97 - mindsofmexico.org
... machine, as well as a physics-oriented version of the ChurchTuring thesis: Every finitely realizable physical system can be perfectly simulated by a universal model computing machine operating by finite means. 2. In classical computer science, a set of gates is universal if it is possible to build a ...
... machine, as well as a physics-oriented version of the ChurchTuring thesis: Every finitely realizable physical system can be perfectly simulated by a universal model computing machine operating by finite means. 2. In classical computer science, a set of gates is universal if it is possible to build a ...
PPT2
... schemes we choose square pulses with Rabi frequency j and duraction j = / j. This leads to an excitation probability P(q) shown right. With increasing pulse duraction the region of excitation is narrowed down. All momenta q except those with q¼0 are excited. By using Blackman pulses a more box ...
... schemes we choose square pulses with Rabi frequency j and duraction j = / j. This leads to an excitation probability P(q) shown right. With increasing pulse duraction the region of excitation is narrowed down. All momenta q except those with q¼0 are excited. By using Blackman pulses a more box ...
INTRODUCTION TO NOISE AND DENSITY MATRICES. Slides in PPT.
... What we’re going to do in this lecture, and why we’re doing it Most of the lecture will be spent understanding the density matrix. Unfortunately, that means we’ve got to master a rather complex formalism. It might seem a little strange, since the density matrix is never essential for calculations – ...
... What we’re going to do in this lecture, and why we’re doing it Most of the lecture will be spent understanding the density matrix. Unfortunately, that means we’ve got to master a rather complex formalism. It might seem a little strange, since the density matrix is never essential for calculations – ...
Semi-Classical Theory for Non-separable Systems
... and 9is a projection operator that projects onto all states which have evolved in the infinite past from reactants.ll It is easy to see that eqn (17) can be written as eqn (1) with N(E) given by ...
... and 9is a projection operator that projects onto all states which have evolved in the infinite past from reactants.ll It is easy to see that eqn (17) can be written as eqn (1) with N(E) given by ...
Quantum cryptography
... be a state of two very distant particles, for example on two planets Measurement of one of the particles, with respect to the standard basis, makes the above state to collapse to one of the states |00> or |11>. This means that subsequent measurement of other particle (on another planet) provides the ...
... be a state of two very distant particles, for example on two planets Measurement of one of the particles, with respect to the standard basis, makes the above state to collapse to one of the states |00> or |11>. This means that subsequent measurement of other particle (on another planet) provides the ...
Quantizing charged magnetic domain walls: Strings on a lattice
... explained2 in terms of a simple commensuration effect, which is inactive in the absence of charged domain wall correlations. Moreover, the spin fluctuations in the metallic state8 closely match the static spin incommensurations in the ordered state.9 These observations force one to consider the poss ...
... explained2 in terms of a simple commensuration effect, which is inactive in the absence of charged domain wall correlations. Moreover, the spin fluctuations in the metallic state8 closely match the static spin incommensurations in the ordered state.9 These observations force one to consider the poss ...
Quantum Spin Hall Effect and Enhanced Magnetic Response by
... I = even. It is surprising that insulators without ordering, usually considered as featureless and uninteresting, can have a nontrivial topological QSH phase. Its nontriviality reveals itself e.g. in a critical exponent [11]. For its interest akin to the quantum Hall systems, an experimental observa ...
... I = even. It is surprising that insulators without ordering, usually considered as featureless and uninteresting, can have a nontrivial topological QSH phase. Its nontriviality reveals itself e.g. in a critical exponent [11]. For its interest akin to the quantum Hall systems, an experimental observa ...
Information in statistical physics
... the positions and velocities of the molecules in a classical gas. On the other hand, microscopic systems are governed by quantum mechanics. There, physical quantities are mathematically represented as recalled in section 2 by elements of a non-commutative algebra. This feature implies, in particular ...
... the positions and velocities of the molecules in a classical gas. On the other hand, microscopic systems are governed by quantum mechanics. There, physical quantities are mathematically represented as recalled in section 2 by elements of a non-commutative algebra. This feature implies, in particular ...
Spin Qubits for Quantum Information Processing
... In this chapter we will review the basic principles of manipulating spin qubits for quantum information processing. The history of spin manipulation (magnetic resonance) techniques for nuclear spins and electron spins in solids and liquids was dated back to early 1940s [1]. The first nuclear magneti ...
... In this chapter we will review the basic principles of manipulating spin qubits for quantum information processing. The history of spin manipulation (magnetic resonance) techniques for nuclear spins and electron spins in solids and liquids was dated back to early 1940s [1]. The first nuclear magneti ...
Group theoretic formulation of complementarity
... DEFINITION: Wave nature NW () NW () = maximum mutual information between Alice and Bob over all possible measurements by Bob. Tg Alice ...
... DEFINITION: Wave nature NW () NW () = maximum mutual information between Alice and Bob over all possible measurements by Bob. Tg Alice ...
spin squeezing and quantum entanglement in interaction
... interaction of a quantized radiation field with a sample of N two-level atoms located within a distance much smaller than the wavelength of the radiation. The simplest case of N = 1 is known under the name of the Jaynes-Cummings model (JCM) (Jaynes and Cummings, 1963). The interaction of a group of ...
... interaction of a quantized radiation field with a sample of N two-level atoms located within a distance much smaller than the wavelength of the radiation. The simplest case of N = 1 is known under the name of the Jaynes-Cummings model (JCM) (Jaynes and Cummings, 1963). The interaction of a group of ...
Quantum mechanics near closed timelike lines
... This paper is about the physical effects of closed timelike lines. Traditional discussions (e.g. , Refs. [1 —5]) treat such effects as properties of spacetime geometry and use the methods of differential geometry and general relativity. There are two main deficiencies in that approach. First, one of ...
... This paper is about the physical effects of closed timelike lines. Traditional discussions (e.g. , Refs. [1 —5]) treat such effects as properties of spacetime geometry and use the methods of differential geometry and general relativity. There are two main deficiencies in that approach. First, one of ...
Phase Shifting of an Interferometer using Nonlocal Quantum-State Correlations
... interferometers can be very far away from each other 关13兴. The difference in the arm lengths of the interferometers can be larger than the coherence length of the down converted light but less than the coherence length of the pump light. The interference appears in the coincidence counts from the de ...
... interferometers can be very far away from each other 关13兴. The difference in the arm lengths of the interferometers can be larger than the coherence length of the down converted light but less than the coherence length of the pump light. The interference appears in the coincidence counts from the de ...
Quasi Particle Tunneling in the Fractional Quantum Hall Regime
... Many of the most fascinating quantum mechanical phenomenons are seen in many body systems, such as the ones found in nano sized semiconducting devices. In these systems the phenomenons can be probed by simple electrical measurements, without the need of multi billion dollar particle accelerators. Mo ...
... Many of the most fascinating quantum mechanical phenomenons are seen in many body systems, such as the ones found in nano sized semiconducting devices. In these systems the phenomenons can be probed by simple electrical measurements, without the need of multi billion dollar particle accelerators. Mo ...
Quantum Teleportation
... Although the basis for such technology evades current theory, it is conceivable that it might eventually be feasible. If this technology were produced, however, society would totally change. The effects on freight transport would be incredible. There would be hardly any need to move items by convent ...
... Although the basis for such technology evades current theory, it is conceivable that it might eventually be feasible. If this technology were produced, however, society would totally change. The effects on freight transport would be incredible. There would be hardly any need to move items by convent ...
Bell's theorem
.svg?width=300)
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: