Strong coupling between a microwave photon and a singlet-triplet qubit.

Combining superconducting resonators and quantum dots has triggered tremendous progress in quantum information, however, attempts at coupling a resonator to even charge parity spin qubits have resulted only in weak spin-photon coupling. Here, we integrate a zincblende InAs nanowire double quantum dot with strong spin-orbit interaction in a magnetic-field resilient, high-quality resonator. The quantum confinement in the nanowire is achieved using deterministically grown wurtzite tunnel barriers. Our experiments on even charge parity states and at large magnetic fields, allow us to identify the relevant spin states and to measure the spin decoherence rates and spin-photon coupling strengths. We find an anti-crossing between the resonator mode in the single photon limit and a singlet-triplet qubit with a spin-photon coupling strength of g/2π = 139 ± 4 MHz. This coherent coupling exceeds the resonator decay rate κ/2π = 19.8 ± 0.2 MHz and the qubit dephasing rate γ/2π = 116 ± 7 MHz, putting our system in the strong coupling regime.

Nutritional supplement utilization in an urban family practice center.

A survey of 128 patients in an urban family health center examined their use of nutritional supplements and found that 31 percent currently used supplements, primarily multivitamins and other vitamins. The patients' desire to increase their energy and to ensure good nutrition were the major reasons for their taking supplements, along with prevention of illness, desire for strength, and dealing with stress. Patients reported that they were influenced by their physicians' advice and were willing to change their supplement use upon physician recommendation. The resident physicians who cared for these patients were also surveyed, and they estimated that an average of 23 percent of their patients used nutritional supplements. Residents did not consider discussion of nutritional supplements to be of high priority, nor did they usually discuss them with their patients. Discussion about the use of nutritional supplements can contribute to the role family physicians play in nutrition education.