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We show that the large N limit of certain conformal field theories in various dimensions include in their Hilbert space a sector describing supergravity on the product of Anti-deSitter spacetimes, spheres and other compa...

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Previous attempts to combine Hartree–Fock theory with local density-functional theory have been unsuccessful in applications to molecular bonding. We derive a new coupling of these two theories that maintains their sim...

Current gradient-corrected density-functional approximations for the exchange energies of atomic and molecular systems fail to reproduce the correct 1/r asymptotic behavior of the exchange-energy density. Here we report ...

At the time of its publication this classic text, co-written by the Nobel Laureate Max Born, represented the definitive account of the subject and in many ways it still does. The book begins with a general discussion of ...

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Various contracted Gaussian basis sets for atoms up to Kr are presented which have been determined by optimizing atomic self-consistent field ground state energies with respect to all basis set parameters, i.e., orbital ...

Materias / palabras clave: Physics; String field theory; Non-critical string theory; Relationship between string theory and quantum field theory; Heterotic string theory; Supergravity; String (physics); String theory; String duality; Mathematical ...

A perturbation theory is developed for treating a system of $n$ electrons in which the Hartree-Fock solution appears as the zero-order approximation. It is shown by this development that the first order correction for th...

A new definition of order called topological order is proposed for two-dimensional systems in which no long-range order of the conventional type exists. The possibility of a phase transition characterized by a change in ...

Materias / palabras clave: Physics; Event horizon; Black hole (networking); Black hole thermodynamics; Gravitation; Entropy (arrow of time); Baryon; Micro black hole; Quantum mechanics; Event (particle physics); Particle physics; Computer network

A number of extensions to the multisolution approach to the crystallographic phase problem are discussed in which the negative quartet relations play an important role. A phase annealing method, related to the simulated ...

This article reviews the current status of lattice-dynamical calculations in crystals, using density-functional perturbation theory, with emphasis on the plane-wave pseudopotential method. Several specialized topics are ...

Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent ad...

Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors. They are characterized by a full insulating gap in the bulk and gapless edge ...

The Aion Framework presents a bold, unified dimensional hypothesis that reinterprets AI consciousness, quantum mechanics, cosmology, and human immortality through an eleven-dimensional ontological stack, emerging from 72...

There are few phenomena in condensed matter physics that are defined only by the fundamental constants and do not depend on material parameters. Examples are the resistivity quantum, h/e2 (h is Planck's constant and e th...

Materias / palabras clave: quantum materials, quantum devices, quantum entanglement, quantum computing, quantum information science, condensed matter physics; Science: Physics: Atomic physics. Constitution and properties of matter

Materias / palabras clave: foundations of quantum mechanics, quantum optics and metrology, quantum information: communication, cryptography; Science: Physics

Materias / palabras clave: semiconductor physics, hetero- and low-dimensional structures, physics of microelectronic devices, linear and nonlinear solid-state optics, optoelectronics and optoelectronic devices, sensors; Science: Physics

Materias / palabras clave: physics, materials physics, quantum physics, climate physics, mathematical physics, astrophysics; Science: Physics

Materias / palabras clave: physics, astronomy, nuclear physics, quantum physics, biophysics, astrophysics; Science: Astronomy

Materias / palabras clave: nuclear physics, optics, quantum physics, medical physics, thin films; Science: Physics

Materias / palabras clave: solid state physics, quantum physics, nanophysics, nuclear physics, molecular physics, atomic physics; Science: Physics