Russian Academy of Sciences

Landau Institute for Theoretical Physics

Scientific News

Forma “nanoutesov” okazalas’ nevazhna dlya protekaniya “mikrorek”

17 January

Uchenye iz Instituta teoreticheskoi fiziki imeni Landau proanalizirovali vliyanie sherokhovatosti stenok mikrokanalov na techenie zhidkostei. Oblast’ nauki, kotoraya izuchaet podobnye yavleniya, nazyvaetsya mikroflyuidikoi, i segodnya ona perezhivaet tu zhe revolyutsiyu miniatyurizatsii, chto i elektronika v kontse XX veka. Ozhidaetsya, chto v blizhaishem budushchem imenno mikroflyuidika budet vo mnogom opredelyat’ razvitie mnogikh otraslei meditsiny, v chastnosti, sozdanie novykh sistem diagnostiki zabolevanii. Rabota fizikov opublikovana v zhurnale Journal of Fluid Mechanics.

Fiziki razrabotali algoritm, kotoryi pozvolit vyyasnit’, chto proiskhodit vnutri yadernogo reaktora i kak stalkivayutsya zvezdy

20 November 2018

Uchenye iz neskol’kikh institutov, v tom chisle Instituta teoreticheskoi fiziki imeni L.D. Landau, razrabotali parallel’nyi vychislitel’nyi algoritm, kotoryi pozvolyaet s khoroshei tochnost’yu modelirovat’ povedenie veshchestva v ekstremal’nykh usloviyakh: pri vzryvakh, moshchnom lazernom vozdeistvii, padenii meteoritov i dazhe pri stolknovenii zvezd. Novyi algoritm pozvolyaet optimal’no raspredelyat’ nagruzku mezhdu vychislitel’nymi uzlami superkomp’yutera, chto mnogokratno sokrashchaet vremya vychislenii. Stat’ya opublikovana v zhurnale Computer Physics Communications.

«Dezhavyu» v slozhnykh fizicheskikh sistemakh priblizilo uchenykh k ponimaniyu prirody gigantskikh voln

15 November 2018

Mezhdunarodnyi kollektiv uchenykh, kuda vkhodili matematiki iz ITF imeni Landau, poluchil prostye i effektivnye priblizhennye formuly dlya resheniya nelineinogo uravneniya Shredingera i proveril ikh «deistvennost’» na praktike – v opticheskikh eksperimentakh. Novaya rabota pomozhet uchenym ob’yasnit’ odno ochen’ neobychnoe fizicheskoe yavlenie: «dezhavyu» nekotorykh nelineinykh sistem – to est’ ikh sposobnost’ vozvrashchat’sya v iskhodnoe sostoyanie. Uchenye rasschityvayut, chto eti raboty pomogut ponyat’ prichinu poyavleniya v okeane gigantskikh voln-ubiits. Issledovanie opublikovano v zhurnale Physical Review X.

Zachem nuzhny issledovaniya kvantovoi elektrodinamiki mnogozaryadnykh ionov

22 October 2018

Pyatogo oktyabrya 2018 goda v ITF imeni Landau vystupil professor, doktor fiziko-matematicheskikh nauk, zaveduyushchii kafedroi kvantovoi mekhaniki Sankt-Peterburgskogo gosudarstvennogo universiteta Vladimir Shabaev. On rasskazal, kak issledovaniya mnogozaryadnykh ionov pozvolyayut issledovatelyam testirovat’ kvantovuyu elektrodinamiku v novoi, ranee nedostupnoi oblasti ochen’ sil’nykh polei, i zaodno pomogayut reshat’ vazhnye prakticheskie voprosy – naprimer, utochnyat’ massu elektrona i magnitnye momenty tyazhelykh yader.

Abrikosov vortices help scientists to explain inconsistencies in ‘dirty’ superconductors theory

8 October 2018

International team of physicists including scientists from University of Grenoble, Landau Institute for Theoretical Physics, Weizmann Institute of Sciences and University of Utah explained anomalous low temperature behavior of ‘dirty’ superconductors. These materials possess various non-trivial properties which make them necessary part of quantum computers with superconductive qubits. In a paper published in Nature Physics, scientists report how ‘dirty’ superconductors can violate the conventional theory of superconductivity. With these results, it becomes possible to engineer superconductive qubits that are perfectly isolated from the outer disturbances and thus can be fully used for quantum computing.

Chashka zhidkogo geliya

10 July 2018

В годовщину открытия сверхтекучести научный сотрудник Института теоретической физики (ИТФ) РАН Яков Фоминов рассказал порталу N+1 о том, как это было сделано и каково значение этого открытия и открытия "родственного" явления сверхпроводимости.

Fiziki nauchilis’ sozdavat’ nanoigly dlya sverkhminiatyurnoi elektroniki pri pomoshchi lucha-bublika

31 May 2018

Mezhdunarodnyi kollektiv fizikov, v kotoryi vkhodili sotrudniki Instituta teoreticheskoi fiziki (ITF) imeni Landau, pridumal sposob sozdavat’ sverkhtonkie – razmerom v neskol’ko desyatkov atomov – elementy dlya nanoelektroniki pri pomoshchi lazernykh luchei v forme bublika (vikhrevykh puchkov) iz vysokoenergichnykh fotonov. Tochnosti drugikh tekhnologii ne khvataet, chtoby poluchat’ podobnye struktury.

Fiziki nashli universal’nuyu kharakteristiku, v kotoroi "skryty" unikal’nye svoistva grafena

6 April 2018

Группа ученых, в том числе специалисты института теоретической физики имени Ландау (ИТФ), описали универсальную характеристику, в которой «спрятано» множество уникальных свойств графена. Знание механизмов его необычного поведения позволит ученым прицельно создавать материалы с нужным набором нетипичных свойств.

Fiziki ob’yasnili, kak zolotye nanochastitsy rozhdayutsya iz peny

22 March 2018

Uchenye iz Instituta teoreticheskoi fiziki imeni L.D. Landau i VNII avtomatiki imeni N.L. Dukhova vyyasnili, kak «rabotaet» novyi perspektivnyi sposob polucheniya nanochastits – lazernaya ablyatsiya. V otlichie ot khimicheskogo sinteza, kotoryi ispol’zuyut obychno, etot protsess pozvolyaet poluchat’ dazhe nanochastitsy slozhnoi struktury, v odnu stadiyu i ne daet «gryazi». Znaya, chto imenno proiskhodit s materialom pri ablyatsii, uchenye smogut sozdavat’ nanochastitsy zadannoi formy i svoistv, prosto upravlyaya parametrami lazernogo vozdeistviya.

Ya byl odnim iz predtechei rabot Stivena Khokinga

17 March 2018

На сайте интернет-газеты "Фонтанка.ру" опубликовано интервью сотрудника ИТФ имени Л.Д. Ландау РАН, академика А.А. Старобинского.

Uchenye «razreshili» einshteinovskoi kosmologicheskoi postoyannoi izmenyat’sya

1 February 2018

Uchenye pod rukovodstvom glavnogo nauchnogo sotrudnika ITF imeni L.D. Landau, akademika RAN Alekseya Starobinskogo predlozhili novoe opisanie kosmologicheskoi postoyannoi, ona zhe temnaya energiya. V razrabotannoi fizikami modeli kosmologicheskaya postoyannaya ne yavlyaetsya neizmennoi, a medlenno raspadaetsya na temnuyu materiyu, i skorost’ etogo protsessa ne zavisit ot vneshnikh uslovii, a podchinyaetsya isklyuchitel’no vnutrennim svoistvam samoi temnoi energii. Takaya model’ pozvolyaet ob’yasnit’ anomaliyu v nablyudaemykh parametrakh krasnykh smeshchenii. Stat’ya uchenykh opublikovana v zhurnale Monthly Notices of the Royal Astronomical Society. Preprint mozhno naiti na saite arXiv.org.

Fiziki ITF imeni Landau nashli optimal’nye parametry materialov dlya sverkhprovodyashchei elektroniki

27 December 2017

Issledovateli iz Instituta teoreticheskoi fiziki (ITF) imeni L.D. Landau obnaruzhili oblast’ parametrov, v kotoroi sverkhprovodniki iz «plokhikh» metallov rabotayut s minimal’nymi poteryami. Razrabotka prigoditsya dlya sozdaniya zashchishchennykh ot pomekh kubitov – klyuchevykh elementov kvantovogo komp’yutera. O svoei rabote avtory rasskazali na Zimnei shkole-konferentsii, prokhodivshei v ITF. Preprint raboty mozhno naiti tut.

Tunnelirovanie razrushilo magnitnuyu prirodu «pochti ferromagnetikov»

21 December 2017

Uchenye iz Instituta teoreticheskoi fiziki (ITF) imeni L.D. Landau vyyasnili, pri kakikh usloviyakh nanochastitsy, sdelannykh iz «pochti ferromagnetikov», mozhno ispol’zovat’ v spintronnykh ustroistvakh – elektronnykh ustroistvakh novogo tipa, v kotorykh protekanie elektricheskogo toka soprovozhdaetsya izmeneniem magnitnogo sostoyaniya sistemy i naoborot. O svoikh rezul’tatakh fiziki dolozhili na «Zimnei shkole po lokalizatsii, vzaimodeistviyam i sverkhprovodimosti», prokhodivshei v ITF.

Akademik RAN Aleksei Starobinskii - o nauke XXI veka i o kosmicheskikh issledovaniyakh v KFU

6 December 2017

В ходе визита  в Казань А.А. Старобинский дал интервью газете "Казанский университет".

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