Multiple-path interferometer with a single quantum obstacle

Multiple-path interferometer with a single quantum obstacle

– We consider the scattering of particles (kinetic energy ε) by an obstacle which tunnels coherently between two positions (tunnel splitting ∆), for arbitrary values of ε/∆ and scattering strength U . The obstacle mimics two classical scatterers at fixed positions when ε ∆. Interference disappears when ε ∆, but can be recovered if the elastic-scattering channel is detected only. At intermediate...

Multiple-path Quantum Interference Effects in a Double-Aharonov-Bohm Interferometer

We investigate quantum interference effects in a double-Aharonov-Bohm (AB) interferometer consisting of five quantum dots sandwiched between two metallic electrodes in the case of symmetric dot-electrode couplings by the use of the Green's function equation of motion method. The analytical expression for the linear conductance at zero temperature is derived to interpret numerical results. A thr...

Single-Setup-Multiple-Deliveries for a Single Supplier-Single Buyer with Single Product and Backorder

  This article investigates integrated production-inventory models with backorder. A single supplier and a single buyer are considered and shortage as backorder is allowed for the buyer. The proposed models determine optimal order quantity, optimal backorder quantity and optimal number of deliveries on the joint total cost for both buyer and supplier. Two cases are discussed: single-setup-singl...

Electromechanical Which–Path Interferometer

Heterodyne interferometer with unequal path lengths

Laser interferometry is an extensively used diagnostic for plasma experiments. Existing plasma interferometers are designed on the presumption that the scene and reference beam path lengths have to be equal, a requirement that is costly in both the number of optical components and the alignment complexity. It is shown here that having equal path lengths is not necessary, instead, what is requir...