Quantum Interference with Nucleons

Urbasi Sinha, Debadrita Ghosh

Kunwar Jagdish Narain

All electrons, nucleons, and other particles or quanta (because quantum mechanics is applied to all particles, these should be known as quanta) undergo a persistent spin motion without possessing any infinite energy source, and therefore, they should have a unique structure that maintains their spinning and provides all the properties that they display. Additionally, because nothing in nature occurs without a reason or purpose, there should be an explanation for their persistent spinning motion. The photons also possess spin motion that they derive from the orbiting electrons from which the photons are emitted, and not obtain from their unique structure. Therefore, purpose why all electrons, nucleons, and other particles possess persistent spin motion, and unique structures of electrons and nucleons have been determined. The results of the determination of the purpose why all electrons, nucleons, and other particles possess persistent spin motion provide very clear and complete explanations for all related phenomena. Present study is focused on to provide clear and complete understanding of the phenomena of interference and diffraction of electrons and photons.

Kiran E. Khosla, Michael Ross Vanner, Natalia Ares +1 more

We introduce the “displacemon” electromechanical architecture that comprises a vibrating nanobeam, e.g., a carbon nanotube, flux coupled to a superconducting qubit. This platform can achieve strong and even ultrastrong coupling, enabling a variety of quantum protocols. We use this system to describe a protocol for generating and measuring quantum interference between trajectories of a nanomechanical resonator. The scheme uses a sequence of qubit manipulations and measurements to cool the resonator, to apply two effective diffraction gratings, and then to measure the resulting interference pattern. We demonstrate the feasibility of generating a spatially distinct quantum superposition state of motion containing more than 10^6 nucleons using a vibrating nanotube acting as a junction in this new superconducting qubit configuration.

Chris Philippidis, Christopher Dewdney, Basil J. Hiley

Lucas Madeira, Kevin E. Schmidt, Alessandro Lovato +1 more

In most simulations of nonrelativistic nuclear systems, the wave functions found solving the many-body Schr\odinger equations describe the quantum-mechanical amplitudes of the nucleonic degrees of freedom. In those simulations the pionic contributions are encoded in nuclear potentials and electroweak currents, and they determine the low-momentum behavior. In this work we present a novel quantum Monte Carlo formalism in which both relativistic pions and nonrelativistic nucleons are explicitly included in the quantum mechanical states of the system. We report the renormalization of the nucleon mass as a function of the momentum cutoff, an Euclidean time density correlation function that deals with the short-time nucleon diffusion, and the pion cloud density and momentum distributions. In the two nucleon sector we show that the interaction of two static nucleons at large distances reduces to the one-pion exchange potential, and we fit the low-energy constants of the contact interactions to reproduce the binding energy of the deuteron and two neutrons in finite volumes. We show that the method can be readily applied to light-nuclei.