Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux'

Details Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux' Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux'

2002-06-12

arxiv.org/abs/cond-mat/0206218v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

1 page with built-in figure, REVTeX4. N.B.: `Alec' is my first name, `Maassen van den Brink' my family name. v2: a few textual

Scientific paper

A recent Letter [1] has proposed a device, consisting of an rf SQUID with the junction replaced by a double one, i.e. a Bloch transistor. For symmetric Josephson couplings, and for specific flux bias and gate voltage applied to the transistor's island, the tunneling of encircled flux between its two local potential minima is claimed to be suppressed completely due to destructive interference. This comment purports to show that this claim in general is not valid. Namely, the very Hamiltonian (1) in [1], from which the effect is derived, describes the circuit only under an additional condition. [1] J.R. Friedman and D.V. Averin, Phys. Rev. Lett._88_, 050403 (2002).

Affiliated with

Also associated with

No associations

Rating

Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux' does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux', we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comment on `Aharonov--Casher-Effect Suppression of Macroscopic Tunneling of Magnetic Flux' will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-690007