• Scientists Turn a Quantum Computer into a Time Machine — At least, for a Second…

      Scientists said they were able to return the state of a quantum computer a fraction of a second into the past, according to a university press release. The researchers, who are from the Moscow Institute of Physics and Technology, along with colleagues from the U.S. and Switzerland, also calculated the probability that an electron in empty interstellar space will spontaneously travel back into its recent past. The study came out recently in Scientific Reports.
      “This is one in a series of papers on the possibility of violating the second law of thermodynamics. That law is closely related to the notion of the arrow of time that posits the one-way direction of time: from the past to the future,” commented the study’s lead author Gordey Lesovik, who heads the Laboratory of the Physics of Quantum Information Technology at MIPT.

      While the researchers don’t expect you to take a trip back to the high school prom just yet, they added that the time reversal algorithm could prove useful for making quantum computers more precise.

      “Our algorithm could be updated and used to test programs written for quantum computers and eliminate noise and errors,” Lebedev explained.

      The researchers said that the work builds on some earlier work that recently garnered headlines.

      “We began by describing a so-called local perpetual motion machine of the second kind. Then, in December, we published a paper that discusses the violation of the second law via a device called a Maxwell’s demon,” Lesovik said. “The most recent paper approaches the same problem from a third angle: We have artificially created a state that evolves in a direction opposite to that of the thermodynamic arrow of time.”
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    • Everything you always wanted to know about human memory (but were afraid to ask)

        Having a good memory is advantageous, even as people stay home amidst the pandemic. Our memories help us maintain an intellectual connection to the world, and keep us from mentally deteriorating.

        Today, we’re launching a new series of articles on memory enhancement, starting with a short overview of how our memory works and the basic training you can undergo to improve it.


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      • Self-Development: How I Couldn't Wear Two Hats and Found Third One



          Hi all! I lead antispam team and several machine learning teams at Mail.ru Group. The subject of this article is self-development for team leads/managers. But in reality many techniques and recipes do not depend on the role at all. This really concerns me because machine learning is developing extremely fast, and it takes a lot of time to stay up to date. So the question about what should be done for development and how is quite topical.

          Of course, the content of this article is not the ultimate truth but just a description of the results of my continuing quest. It tells about approaches based on books and workshops, trials and errors, which have worked for me. It'll be good to have a discussion with you in comments.
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        • The science behind how our brains work best, and how technology and our environment can help



            You’re utterly focused. You’ve lost track of time. Nothing else in the world exists. You’re living in the moment.

            While this might sound like meditation, it’s a description that can also be applied to the state of flow – the feeling of being so engaged by your work, that you lose yourself to it completely, while massively increasing your productivity in the process.

            It’s the holy grail that we all strive for, whether it’s a hobby we’re passionate about, or a project at work. Achieving our best and utilising our maximum potential at all times, can however, be a struggle.
            We had the pleasure of talking with Dr. Jack Lewis, a neuroscientist with a passion for exploring how our minds work, to see what motivates us to do our best work, and the important roles that workplace environments, culture, and technology can play.
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          • How to get the team to search for more productive ideas

              The creation of design models as well as visualization of solutions is for some reason always a subject of great interest among all members of a productive team, be it a manager eager to master Sketch, or a developer who wants to make cool interfaces without the need to go to a designer. But we all know what happens when it comes to actually doing stuff.



              My way


              Hi, everybody!

              My name is Anna and I work for an American company Scentbird NY as a product designer. Prior to that I was involved in developing flagship products in Alfa-Bank design team.

              I was probably born under a lucky star but all my life I've been working with the developers who suggest the best product solutions, better than a lot of product managers and product owners. But anyway, my observation is that the earlier you involve developers into working on a particular task, the better off you are.

              What you are about to read is actually a blueprint on how to conduct brainstorm sessions and generate not-so-obvious yet effective solutions, which are apparently really easy to reach and not that time-consuming.
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            • Artificial neural networks explained in simple words

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                When I used to start a conversation about neural networks over a bottle of beer, people were casting glances at me of what seemed to be fear; they grew sad, sometimes with their eyelid twitching. In rare cases, they were even eager to take refuge under the table. Why? These networks are simple and instinctive, actually. Yes, believe me, they are! Just let me prove this is true!


                Suppose there are two things I’m aware of about the girl: she looks pretty to my taste or not, and I have lots to talk about with her or I haven’t. True and false will be one and zero respectively. We’ll take similar principle for appearance. The question is: “What girl I’ll fall in love with, and why?”


                We also can think it straight and uncompromisingly: “If she looks pretty and there’s plenty to talk about, then I will fall in love. If neither is true, then I quit”.


                But what if I like the lady but there’s nothing to talk about with her? Or vice versa?

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