Letter, A. B. Parks to Augusta Rice February 6, 1865

Letter from plantation manager A. B. Parks in Choctaw Agency, Mississippi, to Augusta Hopkins Rice, regarding the sickness of some of the slaves and the necessity to call Dr. Perkins. He also writes about trying to obtain butter from Judge Carr. 1865.https://scholarsjunction.msstate.edu/mss-rice-papers/1007/thumbnail.jp

Letter, A. B. Parks to Augusta Rice, April 17, 1864

Letter from Rice plantation manager A. B. Parks in Choctaw Agency, Mississippi, to Augusta Hopkins Rice in Mobile, Alabama, regarding the state of the crops and livestock and the health of the workers, including slaves, 1864.https://scholarsjunction.msstate.edu/mss-rice-papers/1004/thumbnail.jp

Letter, A. B. Parks to Augusta Rice, December 14, 1864

Letter from plantation manager A. B. Parks in Choctaw Agency, Mississippi, to Augusta Hopkins Rice, reporting that he slaughtered some hogs and is sending her some meat and produce. He also writes about cattle and spinning. 1864.https://scholarsjunction.msstate.edu/mss-rice-papers/1012/thumbnail.jp

Letter, A. B. Parks to Augusta Rice, May 31, 1864

Letter from Rice plantation manager A. B. Parks in Oktibbeha County, Mississippi, to Augusta Hopkins Rice in Mobile, Alabama, regarding the state of the slaves and crops. A slave named Mariah had \u27convulsion fits\u27 and was bled by the doctor until she fainted. Parks also mentions going to Tupelo, 1864.https://scholarsjunction.msstate.edu/mss-rice-papers/1011/thumbnail.jp

Letter, A. B. Parks to Augusta Rice, June 21, 1864

Letter from Rice plantation manager A. B. Parks in Choctaw Agency, Mississippi, to Augusta Hopkins Rice in Mobile, Alabama, giving her a brief update on health and produce, then telling her that he is going to Atlanta to see his wounded son, 1864. Letter sent care of Major J.J. Walker, Mobile, Alabama.https://scholarsjunction.msstate.edu/mss-rice-papers/1005/thumbnail.jp

Letter, A. B. Parks to Augusta Rice, July 11, 1864

Letter from Rice plantation manager A. B. Parks in Choctaw Agency, Mississippi, to Augusta Hopkins Rice in Mobile, Alabama, opening with the health of the slaves and the state of the crops. Parks writes that his son, who was wounded after fighting in Johnston\u27s army, died at a hospital in Atlanta, and that another wounded son was transferred from Montgomery to Selma, Alabama. The first son was wounded, May 15, 1864, on the last day of the Battle of Resaca, Georgia. Parks writes that the Yankees are trying to raid from Jackson and Memphis, but are being held back. Parks closes with more comments about crops and produce. Letter sent care of Major J.J. Walker, No. 126 Government Street, Mobile, Alabama.1864.https://scholarsjunction.msstate.edu/mss-rice-papers/1006/thumbnail.jp

Coexistence of a triplet nodal order-parameter and a singlet order-parameter at the interfaces of ferromagnet-superconductor Co/CoO/In junctions

We present differential conductance measurements of Cobalt / Cobalt-Oxide / Indium planar junctions, 500nm x 500nm in size. The junctions span a wide range of barriers, from very low to a tunnel barrier. The characteristic conductance of all the junctions show a V-shape structure at low bias instead of the U-shape characteristic of a s-wave order parameter. The bias of the conductance peaks is, for all junctions, larger than the gap of indium. Both properties exclude pure s-wave pairing. The data is well fitted by a model that assumes the coexistence of s-wave singlet and equal spin p-wave triplet fluids. We find that the values of the s-wave and p-wave gaps follow the BCS temperature dependance and that the amplitude of the s-wave fluid increases with the barrier strength.Comment: 5 pages, Accepted to Phys. Rev.

Transport phenomenology for a holon-spinon fluid

We propose that the normal-state transport in the cuprate superconductors can be understood in terms of a two-fluid model of spinons and holons. In our scenario, the resistivity is determined by the properties of the holons while magnetotransport involves the recombination of holons and spinons to form physical electrons. Our model implies that the Hall transport time is a measure of the electron lifetime, which is shorter than the longitudinal transport time. This agrees with our analysis of the normal-state data. We predict a strong increase in linewidth with increasing temperature in photoemission. Our model also suggests that the AC Hall effect is controlled by the transport time.Comment: 4 pages, 1 postscript figure. Uses RevTeX, epsf, multico

Weak Values with Decoherence

The weak value of an observable is experimentally accessible by weak measurements as theoretically analyzed by Aharonov et al. and recently experimentally demonstrated. We introduce a weak operator associated with the weak values and give a general framework of quantum operations to the W operator in parallel with the Kraus representation of the completely positive map for the density operator. The decoherence effect is also investigated in terms of the weak measurement by a shift of a probe wave function of continuous variable. As an application, we demonstrate how the geometric phase is affected by the bit flip noise.Comment: 17 pages, 3 figure

Induced polarization at a paraelectric/superconducting interface

We examine the modified electronic states at the interface between superconducting and ferro(para)-electric heterostructures. We find that electric polarization $P$ and superconducting $\psi$ order parameters can be significantly modified due to coupling through linear terms brought about by explicit symmetry breaking at the interface. Using an effective action and a Ginzburg-Landau formalism, we show that an interaction term linear in the electric polarization will modify the superconducting order parameter $\psi$ at the interface. This also produces modulation of a ferroelectric polarization. It is shown that a paraelectric-superconductor interaction will produce an interface-induced ferroelectric polarization.Comment: 4 pages, 3 figures, Submitted to Phys. Rev.