We have probed the magnetic field dependence of the electron phase coherence time tau(phi) by measuring the Aharonov-Bohm conductance oscillations of mesoscopic Cu rings. Whereas tau(phi) determined from the low-field magnetoresistance saturates below 1 K, the amplitude of Aharonov-Bohm h/e oscillations increases strongly on a magnetic field scale proportional to the temperature. This provides ...

We investigate the quantum transport in a generalized N-particle Hanbury Brown–Twiss setup enclosing magnetic flux, and demonstrate that the Nth-order cumulant of current cross correlations exhibits Aharonov-Bohm oscillations, while there is no such oscillation in all the lower-order cumulants. The multiparticle interference results from the orbital Greenberger-Horne-Zeilinger entanglement of N...

We report an Aharonov-Bohm superperiod of five magnetic flux quanta (5h/e) observed in a Laughlin quasiparticle interferometer, where an edge channel of the 1/3 fractional quantum Hall fluid encircles an island of the 2/5 fluid. This result does not violate the gauge invariance argument of the Byers-Yang theorem because the magnetic flux, in addition to affecting the Aharonov-Bohm phase of the ...

Recent neutron interferometry experiments have been interpreted as demonstrating a new topological phenomenon similar in principle to the usual Aharonov-Bohm (AB) effect, but with the neutron’s magnetic moment replacing the electron’s charge. We show that the new phenomenon, called Scalar AB (SAB) effect, follows from an ordinary local interaction, contrary to the usual AB effect, and we argue ...

A magnetoelectric mapping is demonstrated between dephasing effects of the magnetic vector potential and effects of an effective vector potential describing spin-orbit interaction. The experiments use spin-dependent mesoscopic quantum transport experiments on the narrow-gap semiconductor InSb and the semimetal Bi, both materials with strong spin-orbit interaction. The spin-orbit-induced antiloc...

Abstract We study the implications of generalized uncertainty principle (GUP) with a minimal measurable length on some quantum mechanical interferometry phenomena, such as Aharonov–Bohm, Aharonov–Casher, COW and Sagnac effects. By resorting to modified Schrödinger equation, we evaluate lowest-order correction phase shift interference pattern within two different GUP frameworks: first one is cha...

Geometric (Aharonov--Anandan) phases in neutrino oscillations have been claimed [Phys. Lett. B 780 (2018) 216] to be sensitive the Majorana mixing. More recently, however, it has pointed out 818 (2021) 136376] that proposed are not gauge invariant. Using both kinematic and geometric approaches, we show all gauge-invariant Aharonov--Anandan (including off-diagonal associated with flavor transiti...

It is shown, that the Aharonov-Albert-Vaidman concept of weak values appears to be a consequence more general quantum phenomenon evolution. Here evolution introduced and discussed for first time. In particular, it shown on level there exist restrictions applicability evolution- and, hence, approach. These connect size given ensemble with parameters pre- post-selected states. latter requirement ...