Hi there,

I've recently learned about Josephson junctions, the DC/AC Josephson effects, and SQUIDS. I've been given a set of problems to complete, and one of them is:

'Calculate the supercurrent through two Josephson Junctions in series. Consider constructing the schrodinger equations corresponding to the individual junctions.'

So by Kirchoff's current law the current through the two junctions is the same. I've studied Josehpson's approach using the coupling constant and the schrodinger equations for each half of the junction. I'm struggling however to figure out what to do in terms of actually calculating a supercurrent through them.

In a series array of Josephson junctions, would the coupling constant between each junction be different? I need to couple the Schrodinger equations somehow for both junctions. Any pointers would be much appreciated!

As an aside, out of interest, I know SQUID's have HUGE applications in industry, but do Series arrays of Josephson junctions have any applications to industry?

Many thanks!

EDIT: Basically, my question boils down to: Do I treat the junctions as 4 weakly coupled systems (superconductors), or treat them as two separated coupled systems? Thanks!

Not sure this is the correct subreddit for this type of question.

Josephson discovered 'his' effect from a microscopic picture of Cooper pairs tunnelling, but at least the basic DC Josephson effect follows very quickly from the Ginzburg-Landau equations with appropriate boundary conditions, and could have been discovered by anyone following the publication of the Ginzburg-Landau paper in 1950. Furthermore, thinking about a "macroscopic wavefunction" that can have overlap with another one across an thin barrier seems like a typical Landau-style way of thinking.

Does anyone have any insight as to why neither Landau himself nor anyone in his circle came up with this idea? Was it perhaps a too "practical", device-oriented problem (although it has very deep significance for the nature of ordered states, and broken symmetry)?

So I have been reading about the josephson effect in feynmann's lectures, and I like his derivation as it is nice and intuitive, certainly applied to the AC effect, which I feel I understand. However I am not sure I understand the DC effect. The josephson relations state that I_j = I_c sin phi, meaning that a phase difference between superconductors drives a current, with zero voltage drop, so that does that mean for two superconductors brought together into a SIS junction would result in a spontaneous current flow from one to the other?

Part2

Transit

Nala quickly fell into a regular routine which involved spending a lot of time with Mark in the recreation rooms trying different games and activities. Mark, with no patients to doctor, also had little to do, which was a relief to Nala because apparently only Mark, Ms. Mwangi, and the Captain spoke rladii. Nala couldn’t read any of the text or understand any of the spoken language in video media, so she was limited in which entertainment she could enjoy and who she could enjoy it with.

Nala ate her meals with Mark so he could help her with the menu. Sometimes the Captain or Ms. Mwangi joined them in the galley, but the rest of the crew seemed to mostly eat at different times. About four days into the trip, while the four of them were eating together, Nala noticed that while Mark was using a set of three metal utensils to eat his pasta dish as she had seen him do before, the Captain was coordinating two rods in one hand to eat his mix of rice and vegetables, and Ms. Mwangi was eating a variety of items by tearing off a piece of some kind of flat bread and pinching the food items within it. Mark informed her that this was a pretty good example of the three basic ways humans eat (flatware, chopsticks, and fingers) while explaining that each technique was favored by roughly one third of the human population. On a ship like the Killdeer, with such an eclectic crew, each crew member was likely to switch between methods, depending on exactly what they were eating at the time. Mark struggled a little bit to explain it, because "eclectic" was not a word the homogeneous rladii had a direct translation for. But, looking around the table, Nala was beginning to understand the concept.

Since they were on the topic of what they were eating, Nala took the opening to ask about something that was bothering her: she depended on Mark to order food for her at each meal. There were a lot of humans on the ship (rather more than Nala though should be required for a freighter of this size, actually) but apparently only the three currently at the table with her could speak rladii. Nala inquired if they would be willing to work with her to help her learn to speak and read Human. That brought a laugh out of Mark and the Captain almost choked on his food. It was Ms. Mwangi that came to her rescue. "Humans speak over six thousand different languages. However, many people speak two or

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

Do your worst!

I'm surprised it hasn't decade.

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂

It really does, I swear!

Because she wanted to see the task manager.

• If you find your book in the thread below, send the number of the book via reddit chat or via telegram .
• Almost all the books are in their latest editions and some of them are available in multiple editions too
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• You can also send requests via reddit chat or by telegram .
• Also, upvote the post if you found it useful

Please find the list below

5231. Interviewing: Principles and Practices, 14th Edition: Charles J Stewart &, William B Cash

5232. Introductory Algebra for College Students, 7th Edition : Robert F. Blitzer

5233. The Globalization of World Politics, 7th Edition: John Baylis

5234. Macroeconomics, 10th Edition : N. Gregory Mankiw

5235. Painless Grammar, 4th edition : Rebecca Elliott

5236. The Reading Teacher's Book of Lists, 6th Edition: Jacqueline E. Kress & Edward B. Fry

5237. Reinventing Project-Based Learning: Your Field Guide to Real-World Projects in the Digital Age, 2nd Edition: Boss Suzie & Jane Krauss

5238. Medical Physiology E-Book, 3rd Edition: Walter F. Boron &, Emile L. Boulpaep

5239. Medical Physiology E-Book, 2nd Updated Edition : Walter F. Boron & , Emile L. Boulpaep

5240. Algebra: Beginning and Intermediate, 3rd Edition: Richard N. Aufmann & Joanne Lockwood

5241. Theory of Computation, 1st Edition George Tourlakis: George Tourlakis

5242. Financial & Managerial Accounting, 18th Edition : Jan Williams & Susan Haka &, Mark S Bettner & Joseph V Carcello

5243. Introduction to Policing The Pillar of Democracy, 2nd Edition: M.R. (Maki) Haberfeld &, Charles Lieberman &, Amber Horning

5244. American Politics Today, 6th Edition: William T. Bianco &, David T. Canon

5245. Interplay: The Process of Interpersonal Communication, 14th Edition: Ronald B. Adler &, Lawrence B. Rosenfeld &, Russell F. Proctor II

5246. Gramática Española : Análisis y Práctica, 3rd Edition: Larry D. King & Margarita Suñer

5247. Teaching Today's Health, 10th Edition: David Anspaugh &, Gene Ezell

5248. Adventures in Social Research: Data Analysis Using IBM SPSS Statistics, 10th Edition: Earl R. Babbie & William E. Wagner & Jeanne S. Zaino

5249. Experience Psychology, 4th Edition : Laura King

5250. Asian American Dreams: The Emergence of an American People, 1st Edition: Helen Zia

5251. Evidence-Based Geriatric Nu

They’re on standbi

Pilot on me!!

Nothing, he was gladiator.

Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.

This sub is mostly just NSFW puns now.

If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.

Edit* I'm not replying any longer and turning off notifications but to all those that say "no one cares", there sure are a lot of you arguing about it. Maybe I'm wrong but you people don't need to be rude about it. If you really don't care, don't comment.

When I got home, they were still there.

What did 0 say to 8 ?

" Nice Belt "

So What did 3 say to 8 ?

" Hey, you two stop making out "

I won't be doing that today!

BamBOO!

[Removed]

Where ever you left it 🤷‍♀️🤭

This morning, my 4 year old daughter.

Daughter: I'm hungry

Me: nerves building, smile widening

Me: Hi hungry, I'm dad.

She had no idea what was going on but I finally did it.

Thank you all for listening.

There hasn't been a post all year!

You take away their little brooms