Gibbs' paradox and black-hole entropy
... Since the entropy of the Sun is of the order of 1057 kB , it would experience an increase in 20 orders of magnitude in entropy after collapsing to a black hole.2 Gravitational collapse thus ensues an enormous increase of entropy. It is a big challenge for any approach to quantum gravity to provide a ...
... Since the entropy of the Sun is of the order of 1057 kB , it would experience an increase in 20 orders of magnitude in entropy after collapsing to a black hole.2 Gravitational collapse thus ensues an enormous increase of entropy. It is a big challenge for any approach to quantum gravity to provide a ...
A Weak Gravity Conjecture for Scalar Field Theories
... vast vacua of string theory. After a careful investigation, we find that a similar bound exists in a class of scalar field theories. In this class of theories at least, “gravity is the weakest” even in the appearance of scalars. We will study scalar field theories with soliton solutions. we will foc ...
... vast vacua of string theory. After a careful investigation, we find that a similar bound exists in a class of scalar field theories. In this class of theories at least, “gravity is the weakest” even in the appearance of scalars. We will study scalar field theories with soliton solutions. we will foc ...
Fast Field Cycling NMR Relaxometry
... How does an atomic-size system absorb/emit a 3m wave with a frequency precise to 1 part in 1011 and never miss a bit ? Scale the spin system to fit a 1m box (factor 1010). Then the wavelength would be 0.2 au and the complete wave-packet would extend over 30000 light-years. ...
... How does an atomic-size system absorb/emit a 3m wave with a frequency precise to 1 part in 1011 and never miss a bit ? Scale the spin system to fit a 1m box (factor 1010). Then the wavelength would be 0.2 au and the complete wave-packet would extend over 30000 light-years. ...
The Ontology of Bohmian Mechanics
... space of the universe, implying that configuration space is not only a mathematical representation of configurations of N particles in three-dimensional physical space, but has to be granted a physical reality in its own right as a 3Ndimensional space (see, for example, Bell [1987], p. 128). The ont ...
... space of the universe, implying that configuration space is not only a mathematical representation of configurations of N particles in three-dimensional physical space, but has to be granted a physical reality in its own right as a 3Ndimensional space (see, for example, Bell [1987], p. 128). The ont ...
College Algebra Course Rewrite
... In Algebra, unknown values are indicated by a letter, called a variable. A value may be represented by any letter, but the most common variables are a, b, c, x, y, z. ...
... In Algebra, unknown values are indicated by a letter, called a variable. A value may be represented by any letter, but the most common variables are a, b, c, x, y, z. ...
Plasma Electrodynamics and Applications—A. Bers, A. K. Ram
... single-fluid magneto-hydrodynamic (MHD) description of low-frequency dynamics.3,4 For a plasma in a strong magnetic field, so-called gyro-viscous terms, that are independent of collisions, were discovered and their use became a common feature in collisionless MHD. Here we report on a different formu ...
... single-fluid magneto-hydrodynamic (MHD) description of low-frequency dynamics.3,4 For a plasma in a strong magnetic field, so-called gyro-viscous terms, that are independent of collisions, were discovered and their use became a common feature in collisionless MHD. Here we report on a different formu ...
Quantum Information and Quantum Computation
... Over the last half century, the components of computers have gotten smaller by a factor of two every year and a half, the phenomenon known as Moore's law. In current computers, the smallest wires and transistors are coming close to a size of one hundred nanometers across, a thousand times the diamet ...
... Over the last half century, the components of computers have gotten smaller by a factor of two every year and a half, the phenomenon known as Moore's law. In current computers, the smallest wires and transistors are coming close to a size of one hundred nanometers across, a thousand times the diamet ...
PDF
... A quantum internet consists of quantum computers connected by quantum communication channels. The problem of maintaining the coherence of quantum information as it is moved from atoms to photons, transported through space, and moved back from photons to atoms, is a difficult one. Exactly because qua ...
... A quantum internet consists of quantum computers connected by quantum communication channels. The problem of maintaining the coherence of quantum information as it is moved from atoms to photons, transported through space, and moved back from photons to atoms, is a difficult one. Exactly because qua ...
PDF file
... We start with a short description of the ED procedures, which follow a sequence of events. Between events Newton's equation of motion for each object is solved analytically. An object is a sphere or the bottom plate; an event is defined for a sphere by a sudden change in momentum, i.e. a collision. ...
... We start with a short description of the ED procedures, which follow a sequence of events. Between events Newton's equation of motion for each object is solved analytically. An object is a sphere or the bottom plate; an event is defined for a sphere by a sudden change in momentum, i.e. a collision. ...
gauge theory - CERN Indico
... Larger gauge theories • First example of a gauge theory beyond QED was the Yang-Mills theory (1954), a gauge theory of isospin SU(2) symmetry. — same theory also proposed by Salam’s student Ronald Shaw, but unpublished except as a Cambridge University PhD thesis — ultimately not correct theory of s ...
... Larger gauge theories • First example of a gauge theory beyond QED was the Yang-Mills theory (1954), a gauge theory of isospin SU(2) symmetry. — same theory also proposed by Salam’s student Ronald Shaw, but unpublished except as a Cambridge University PhD thesis — ultimately not correct theory of s ...