Josephson effects are commonly studied in quantum systems which dissipation or noise can be neglected do not play a crucial role. In contrast, here we discuss setup where dissipative interactions amplify photonic current, opening doorway to dissipation-enhanced sensitivity of quantum-optical interferometry devices. particular, study two coupled nanolasers subjected phase coherent drivings and b...

The crossover between ideal Josephson behavior and uniform superconducting flow is studied by solving exactly the Ginzburg-Landau equation for a one-dimensional superconductor in the presence of an effective delta function potential of arbitrary strength. As the effective scattering is turned off, the pairs of Josephson solutions with equal current evolve into a uniform and a solitonic solution...

A detailed calculation is presented of the dielectric function in superconducttors consisting of two Josephson coupled superconducting layers per unit cell, taking into account the effect of finite compressibility of the electron fluid. From the model it follows, that two longitudinal, and one transverse optical Josephson plasma resonance exist in these materials, for electric field polarizatio...

The properties of SNS Josephson junctions in YBa2Cu3O7-δ thin films have been investigated, which were fabricated by oxygen irradiation at 200 keV through a 50 nm wide slit in an implantation mask. After annealing the irradiated microbridges at 500°C in an oxygen atmosphere, the implanted region has a reduced but finite transition temperature, allowing Josephson coupling in a temperature window...

The Josephson effect is a fundamental quantum phenomenon where a dissipationless supercurrent is introduced in a weak link between two superconducting electrodes by Andreev reflections. The physical details and topology of the junction drastically modify the properties of the supercurrent and a strong enhancement of the critical supercurrent is expected to occur when the topology of the junctio...

Enhancement of conductivity and/or superconductivity has been found in YBa2CuaO~ thin films after illumination with visible light. 1-'t This persistent photoinduced conductivity (PPC) and photoinduced superconductivity (PPS) is maximum for deoxygenated samples and an insulating YBa2Cu:30~ thin film can even become superconducting by illumination, a In bicrystal grain boundary Josephson junction...

We show that the linewidth of a Josephson flux-flow oscillator has the same functional dependence on temperature, static, and dynamic resistances as the ones of Josephson single-fluxon oscillators and small Josephson junctions. This suggests a universal formula for the linewidth of Josephson oscillators.

We propose a platform for observing the Josephson diode effect: Andreev molecule. This nonlocal electronic state is hosted in circuits made of two closely spaced junctions, through hybridization states. The effect occurs at level one individual junction while other generates required time-reversal and spatial-inversion symmetry breaking. present microscopic description this phenomenon based on ...