2,798 research outputs found
Investment during the Korean Financial Crisis: A Structural Econometric Analysis
This paper uses firm-level panel data to analyze the role of financial factors in determining investment outcomes during the Korean financial crisis. Our identification strategy exploits the presence of foreign-denominated debt to measure shocks to the financial position of firms following the devaluation that occurred during the crisis period. Structural parameter estimates imply that financial factors may account for 50% to 80% of the overall drop in investment observed during this episode. Our estimates also imply that foreign-denominated debt had relatively little effect on aggregate investment spending. Counterfactual experiments suggest sizeable contractions in investment through this mechanism for economies that are more heavily dependent on foreign-denominated debt however.
Signatures of the Pair-Coherent State
We explore in detail the possibility of generating a pair-coherent state in
the non-degenerate parametric oscillator when decoherence is included. Such
states are predicted in the transient regime in parametric oscillation where
the pump mode is adiabatically eliminated. Two specific signatures are examined
to indicate whether the state of interest has been generated, the Schrodinger
cat state - like signatures, and the fidelity. Solutions in a transient regime
reveal interference fringes which are indicative of the formation of a
Schrodinger cat state. The fidelity indicates the purity of our prepared state
compared to the ideal pair-coherent state.Comment: Figures hacked down to size for serve
Generating optical nonlinearity using trapped atoms
We describe a scheme for producing an optical nonlinearity using an
interaction with one or more ancilla two-level atomic systems. The
nonlinearity, which can be implemented using high efficiency fluorescence
shelving measurements, together with general linear transformations is
sufficient for simulating arbitrary Hamiltonian evolution on a Fock state
qudit. We give two examples of the application of this nonlinearity, one for
the creation of nonlinear phase shifts on optical fields as required in single
photon quantum computation schemes, and the other for the preparation of
optical Schrodinger cat states.Comment: Substantially extended from quant-ph/020815
Tallahassee. Letter from Albert W. Gilchrist, State of Florida, Executive Chamber
I have had prepared some little pins, on which is a representation of the Great Seal of the State. I am taking the liberty of sending one of them to the wife of each one of the former Governors of the State. I hope that you will like the little pin. Note: Pin not included with this letter, 1909-04-0
Momentum distribution, vibrational dynamics and the potential of mean force in ice
By analyzing the momentum distribution obtained from path integral and phonon
calculations we find that the protons in hexagonal ice experience an
anisotropic quasi-harmonic effective potential with three distinct principal
frequencies that reflect molecular orientation. Due to the importance of
anisotropy, anharmonic features of the environment cannot be extracted from
existing experimental distributions that involve the spherical average. The
full directional distribution is required, and we give a theoretical prediction
for this quantity that could be verified in future experiments. Within the
quasi-harmonic context, anharmonicity in the ground state dynamics of the
proton is substantial and has quantal origin, a finding that impacts the
interpretation of several spectroscopies
Quantum computation with optical coherent states
We show that quantum computation circuits using coherent states as the
logical qubits can be constructed from simple linear networks, conditional
photon measurements and "small" coherent superposition resource states
An analytical approach to solution of two- point boundary condition problems in optimal guidance Summary report, May 1965 - Apr. 1966
Analytical approaches to path-adaptive guidance functions, circular orbit trajectories, and use of Fortran-compiled program
FALL AND INJURY INCIDENCE RATES OF JOCKEYS WHILE RACING IN FRANCE, GREAT BRITAIN AND IRELAND
The objective of this study is to provide quantitative details of the frequency and severity of injuries, especially head injuries, sustained by jockeys while racing. There is a lack of worldwide equestrian injury data and a lack of uniformity in the data that is available
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