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71 papers · 1 filter
Surface effects in a semiconductor photonic nanowire and spectral stability of an embedded single quantum dot
Inah Yeo, Nitin S. Malik, Mathieu Munsch +10
We evidence the influence of surface effects for InAs quantum dots embedded into GaAs photonic nanowires used as efficient single photon sources. We observe a continuous temporal d…
Temperature dependence of the emission linewidth in MgO-based spin torque nano-oscillators
J. F. Sierra, M. Quinsat, U. Ebels +8
Spin transfer driven excitations in magnetic nanostructures are characterized by a relatively large microwave emission linewidth (10 -100 MHz). Here we investigate the role of ther…
Quantum simulations and experiments on Rabi oscillations of spin qubits: intrinsic {\sl vs} extrinsic damping
H. De Raedt, B. Barbara, S. Miyashita +3
Electron Paramagnetic Resonance experiments show that the decay of Rabi oscillations of ensembles of spin qubits depends noticeably on the microwave power and more precisely on the…
Weak localization with nonlinear bosonic matter waves
Timo Hartmann, Josef Michl, Cyril Petitjean +4
We investigate the coherent propagation of dilute atomic Bose-Einstein condensates through irregularly shaped billiard geometries that are attached to uniform incoming and outgoing…
Polaron Transport in Organic Crystals: Temperature Tuning of Disorder Effects
Frank Ortmann, Stephan Roche
We explore polaronic quantum transport in three-dimensional models of disordered organic crystals with strong coupling between electronic and vibrational degrees of freedom. By stu…
Phase diagram of UGe2. Whether there are quantum phase transitions ?
V. P. Mineev
The phase diagram of several itinerant ferromagnets reveals the common feature. The phase transition temperature decreases with pressure increase and reaches zero value at some cri…