6,069 research outputs found
The Inland Empire in 2015
Presents projections for international and local migration, demographics, education, economic and employment conditions, and political participation for Southern California's Riverside and San Bernardino counties
High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity
We demonstrate a qubit readout scheme that exploits the Jaynes-Cummings
nonlinearity of a superconducting cavity coupled to transmon qubits. We find
that in the strongly-driven dispersive regime of this system, there is the
unexpected onset of a high-transmission "bright" state at a critical power
which depends sensitively on the initial qubit state. A simple and robust
measurement protocol exploiting this effect achieves a single-shot fidelity of
87% using a conventional sample design and experimental setup, and at least 61%
fidelity to joint correlations of three qubits.Comment: 5 pages, 4 figure
Prospective Evaluation of Two Dosing Equations for Theophylline in Premature Infants
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90141/1/j.1875-9114.1996.tb02995.x.pd
Ebola Virus Localization in the Macaque Reproductive Tract during Acute Ebola Virus Disease.
Sexual transmission of Ebola virus (EBOV) has been demonstrated more than a year after recovery from the acute phase of Ebola virus disease (EVD). The mechanisms underlying EBOV persistence and sexual transmission are not currently understood. Using the acute macaque model of EVD, we hypothesized EBOV would infect the reproductive tissues and sought to localize the infection in these tissues using immunohistochemistry and transmission electron microscopy. In four female and eight male macaques that succumbed to EVD between 6 and 9 days after EBOV challenge, we demonstrate widespread EBOV infection of the interstitial tissues and endothelium in the ovary, uterus, testis, seminal vesicle, epididymis, and prostate gland, with minimal associated tissue immune response or organ pathology. Given the widespread involvement of EBOV in the reproductive tracts of both male and female macaques, it is reasonable to surmise that our understanding of the mechanisms underlying sexual transmission of EVD and persistence of EBOV in immune-privileged sites would be facilitated by the development of a nonhuman primate model in which the macaques survived past the acute stage into convalescence
A proposal for implementing an n-qubit controlled-rotation gate with three-level superconducting qubit systems in cavity QED
We present a way for implementing an n-qubit controlled-rotation gate with
three-level superconducting qubit systems in cavity QED. The two logical states
of a qubit are represented by the two lowest levels of each system while a
higher-energy level is used for the gate implementation. The method operates
essentially by preparing a state conditioned on the states of the control
qubits, creating a single photon in the cavity mode, and then performing an
arbitrary rotation on the states of the target qubit with assistance of the
cavity photon. It is interesting to note that the basic operational steps for
implementing the proposed gate do not increase with the number of qubits,
and the gate operation time decreases as the number of qubits increases. This
proposal is quite general, which can be applied to various types of
superconducting devices in a cavity or coupled to a resonator.Comment: Six figures, accepted by Journal of Physics: Condensed Matte
Measurements of Quasiparticle Tunneling Dynamics in a Bandgap-Engineered Transmon Qubit
We have engineered the bandgap profile of transmon qubits by combining
oxygen-doped Al for tunnel junction electrodes and clean Al as quasiparticle
traps to investigate energy relaxation due to quasiparticle tunneling. The
relaxation time of the qubits is shown to be insensitive to this bandgap
engineering. Operating at relatively low makes the transmon
transition frequency distinctly dependent on the charge parity, allowing us to
detect the quasiparticles tunneling across the qubit junction. Quasiparticle
kinetics have been studied by monitoring the frequency switching due to
even/odd parity change in real time. It shows the switching time is faster than
10 s, indicating quasiparticle-induced relaxation has to be reduced to
achieve much longer than 100 s.Comment: 11 pages, 8 figure
Linear vs. nonlinear effects for nonlinear Schrodinger equations with potential
We review some recent results on nonlinear Schrodinger equations with
potential, with emphasis on the case where the potential is a second order
polynomial, for which the interaction between the linear dynamics caused by the
potential, and the nonlinear effects, can be described quite precisely. This
includes semi-classical regimes, as well as finite time blow-up and scattering
issues. We present the tools used for these problems, as well as their
limitations, and outline the arguments of the proofs.Comment: 20 pages; survey of previous result
The Effects of Acute Thermoneutral and Hot Water Immersion on Cerebrovascular Reactivity
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