Ground-state phases of polarized deuterium species

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.5527· OSTI ID:6173128

Panoff, R M; Clark, J W

Microscopic prediction of the ground-state phase of electron-spin-aligned bulk atomic deuterium (Darrow-down) is attempted, based on the variational Monte Carlo method. The accurate pair potential of Kolos and Wolniewicz is assumed, and three versions of Darrow-down are considered, which, respectively, involve one, two, and three equally occupied nuclear spin states. The most definitive results on the zero-temperature equations of state of these systems are obtained with optimized ground-state trial wave functions incorporating Jastrow pair correlations, triplet correlations, and momentum-dependent backflow effects. The species Darrow-down/sub 3/ is bound already at the pure Jastrow level, while the energy expectation value of Darrow-down/sub 2/ dips below zero upon supplementing the Jastrow description by triplets and momentum-dependent backflow. The variational energy of Darrow-down/sub 1/ remains positive under all current refinements of the ground-state trial function. We conclude that the systems Darrow-down/sub 3/ and Darrow-down/sub 2/, if they could be manufactured and stabilized at relevant densities, would be Fermi liquids at sufficiently low temperature; on the other hand, it is likely that Darrow-down/sub 1/ would remain gaseous down to absolute zero.

• Research Organization: Department of Physics, Kansas State University, Manhattan, Kansas 66506
• OSTI ID: 6173128
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640460* -- Fluid Physics-- Other Quantum Fluids
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
CONDENSATES
DEUTERIUM
DIFFERENTIAL EQUATIONS
ENERGY LEVELS
EQUATIONS
EQUATIONS OF MOTION
FERMI GAS
FLUIDS
GASES
GROUND STATES
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MONTE CARLO METHOD
NUCLEI
ODD-ODD NUCLEI
ORIENTATION
PARTIAL DIFFERENTIAL EQUATIONS
PHASE STABILITY
QUANTUM FLUIDS
SPIN ORIENTATION
STABILITY
STABLE ISOTOPES