0000000000387771

AUTHOR

Ma Solís

showing 2 related works from this author

LiquidHe4andHe3at negative pressure

1992

The critical pressures {ital P}{sub {ital c}} at which liquid {sup 4}He and {sup 3}He each become macroscopically unstable are determined from two kinds of microscopic calculations that reproduce the equation of state. The behavior of the sound velocity {ital c} around this critical pressure is analyzed, and the critical exponent in {ital c}{proportional to}({ital P}{minus}{ital P}{sub {ital c}}){sup {nu}} is found to be {nu}=1/4. A comparison with empirical analysis is also done.

PhysicsLight nucleusEquation of stateLiquid stateHelium-4Helium-3Analytical chemistryThermodynamicsIsotopes of heliumCritical exponentSound wavePhysical Review B
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London equation of state for a quantum-hard-sphere system

1994

The London analytical interpolation equation between zero and packing densities for the ground-state energy of a many-boson hard-sphere system is corrected for the reduced mass of a pair of particles in a ``sphere-of-influence'' picture. It is thus brought into good agreement with computer simulations and with experimental results extrapolated out to close packing.

PhysicsLondon equationsClassical mechanicsZero (complex analysis)Close-packing of equal spheresState (functional analysis)Reduced massGround stateQuantumInterpolationPhysical Review B
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