Nitrous oxide, N2O, is a greenhouse gas which plays a role in atmospheric ozone destruction. Known terrestrial N2O sources do not account for its abundance (300 ppbv) in the atmosphere. We performed matrix isolation ...
The A.=1.35-cm H20 masers in sites of star formation typically display very narrow
linewidths, narrower than the separation of the three strongest hyperfine
components of the transition, as well as unexpectedly steep ...
This thesis presents an original derivation of the Bekenstein-Hawking
formula for the entropy of a black hole within the framework of loop quantum
gravity. This derivation differs from preceding ones in that it models
the ...
Abstract Liquid crystals have been an important part of the technological revolution of the past 20 years. Studies that examine liquid crystals with unique properties, such as the photosensitivity of ZhK 440, can help ...
At the heart of turbulence physics is the idea that some flows can be made sense
of only statistically, and that once we adopt a statistical perspective, universalities
and symmetries begin to emerge from the chaos. ...
Positronium (Ps), the bound state formed by a positron and an electron, serves as a valuable probe of void spaces, particularly in materials with irregular porosity such as glasses, low-k dielectrics, and polymers. One ...
Positronium (Ps), the bound state of an electron and a positron, may
be used as a probe of the porous space in bulk materials due to its
long vacuum lifetime and the fact that this lifetime depends strongly
on its ...
Positronium (Ps) is modeled inside a solid Argon lattice using the path integral Monte
Carlo (PIMC) technique. Statistics on site occupancy, Ps structure, and energies are
collected for argon both with and without a ...
Today, we find an increasing interest in Brownian motors - theoretical "thermal
ratchets" that rectify random motion to do work. This interest stems not
only from possible applications to cellular transport mechanisms ...
The extraordinarily short optical dephasing time of organic dye molecules in polymer hosts is known to be under 20 fs between 100 and 200 K. Short dephasing times suggest enormously broadened homogeneous linewidths on the ...
The theoretical lifetime of para-Positronium is calculated using Feynman rules. Relativistic quantum mechanics is discussed. This is accompanied by an introductory level treatment of classical and relativistic propagator ...
Most close binary T Tauri stars are surrounded by circumbinary disks similar to the protoplanetary disks seen around young single stars. In the case of binaries, however, theory predicts that the time-varying gravitational ...
Images from the robotic Hex, southern sky survey, now underway at Cerro Tololo Inter-American Observatory, are analyzed and the survey is quantified in tenns of two past catalogues, one of planetary nebulae and one of HII ...
The theory of quantum computation, a new and promising field, is discussed. The
mathematical background to the field is presented, drawing ideas both from quantum
mechanics and the theory of classical computation. The ...
Using numerical simulation, we measured the performance of several potential
quantum algorithms, based on quantum random walks, to solve Boolean
satisfiability (SAT) problems. We develop the fundamentals of quantum ...
We discuss the nature and role of the measurement problem in quantum mechanics
and present the concept of decoherence as a proposed solution to the
measurement problem. We review important conceptual foundations ...
We have extensively modeled a neon photoionization experiment on the Z machine at
Sandia National Laboratories. Using a suite of modeling codes, we have reproduced
the experimental environment and simulated the physical ...
At the current time, the study of the Interstellar Medium (ISM) can be approached from two different angles. The first is by analyzing observational results from radio astronomy, thereby deducing the structure of the ISM. ...
Arrays of magnetic probes in conjunction with numerical and analytical modeling have been used to study the equilibrium states of magnetized toroidal plasma configurations called spheromaks. A time resolved fit of data to ...
This study examined the phase behavior of four different Langmuir monolayers. The
four different monolayers were 1,2-Dipalimitoyl, sn-Glycero-3-Phophocholine (DPPC),
cetyltrimethylammonium bromide (CTAB), Isocarb-24 ...