Efficient Source of Shaped Single Photons Based on an Integrated Diamond Nanophotonic System.

An efficient, scalable source of shaped single photons that can be directly integrated with optical fiber networks and quantum memories is at the heart of many protocols in quantum information science. We demonstrate a deterministic source of arbitrarily temporally shaped single-photon pulses with high efficiency [detection efficiency=14.9%] and purity [g^{(2)}(0)=0.0168] and streams of up to 11 consecutively detected single photons using a silicon-vacancy center in a highly directional fiber-integrated diamond nanophotonic cavity. Combined with previously demonstrated spin-photon entangling gates, this system enables on-demand generation of streams of correlated photons such as cluster states and could be used as a resource for robust transmission and processing of quantum information.

Quantum Network Nodes Based on Diamond Qubits with an Efficient Nanophotonic Interface.

Quantum networks require functional nodes consisting of stationary registers with the capability of high-fidelity quantum processing and storage, which efficiently interface with photons propagating in an optical fiber. We report a significant step towards realization of such nodes using a diamond nanocavity with an embedded silicon-vacancy (SiV) color center and a proximal nuclear spin. Specifically, we show that efficient SiV-cavity coupling (with cooperativity C>30) provides a nearly deterministic interface between photons and the electron spin memory, featuring coherence times exceeding 1 ms. Employing coherent microwave control, we demonstrate heralded single photon storage in the long-lived spin memory as well as a universal control over a cavity-coupled two-qubit register consisting of a SiV and a proximal ^{13}C nuclear spin with nearly second-long coherence time, laying the groundwork for implementing quantum repeaters.

[Application of C-QUR V-Patch system while performing preperitoneal alloplasty for small and middle umbilical hernias].

Own experience of application of a system C-QUR V-Patch, manufactured by "Atrium" (Maquet Getinge Group) firm while performing preperitoneal alloherniolasty for small and middle umbilical hernias, was summarized. In this implant polypropylene mesh, covered by layer of preparation of omega-3 class of polyunsaturated fatty acids, capable of bioabsorption, joined with a newest technologies of a space memory. Its application guarantees lesser traumaticity and duration of operation, absence of peritoneal damage, small sizes of operation wound, what permits to accelerate significantly the patients' working ability restoration, as well as to achieve a quality of their life improvement.

[Clinical diagnosis of HIV infection in patients with acute surgical diseases of the abdominal cavity organs and pulmonary tuberculosis].

The results of treatment of 81 patients, suffering tuberculosis and operated in emergency for an acute surgical diseases of the abdominal cavity organs, are adduced, in 29 of them--nonspecific diseases of nontuberculosis genesis were diagnosed. In 52 patients the indication for emergency operation performance were complications of abdominal tuberculosis (perforation of the tuberculosis ulcers of small intestine--in 37, the tuberculosis mesadenitis--in 15), of them in 34--pulmonary tuberculosis was in inactive phase, that's why the HIV presence was supposed. In 26 patients the diagnosis was confirmed, basing on serologic analysis data. The presence of intraabdominal catastrophe, caused by abdominal tuberculosis complications on inactive pulmonary tuberculosis background witnesses with 85.3% probability the HIV-infectioning of the patient.