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Bagatovimirnij chas gipotezi isnuvannya chasu z rozmirnistyu T gt 1 Ci gipotezi mayut pevne poshirennya u fizici filosofiyi i fantastici Vlastivosti S T vimirnogo prostoru chasuU fiziciSpecialna teoriya vidnosnosti STO opisuye prostir chas u viglyadi psevdorimanovogo mnogovidu z odnim vid yemnim vlasnim znachennyam metrichnogo tenzora yake vidpovidaye chasopodibnomu napryamku Metrika z kilkoma vid yemnimi vlasnimi znachennyami bude vidpovidno mati na uvazi nayavnist dekilkoh chasovih napryamkiv tobto chas bude bagatovimirnim ale nini nemaye konsensusu shodo zv yazku cih dodatkovih chasiv z chasom u zvichajnomu rozuminni Gipotezi bagatovimirnogo chasu visuvalisya u fizici dvoyisto yak mozhlivij teoretichnij opis realnosti chi yak cikava mozhlivist sho jmovirno ne maye stosunku do vidomoyi prirodi Napriklad en opublikuvav robotu Fizika dvovimirnogo chasu zasnovanu na simetriyi SO 10 2 rozshirenoyi strukturi supersimetriyi M teoriyi yaka ye najsuchasnishim ta sistematizovanim riznovidom ciyeyi teoriyi div takozh en Yaksho specialna teoriya vidnosnosti mozhe buti uzagalnena na vipadok k vimirnogo chasu t1 t2 tk i n vimirnogo prostoru xk 1 xk 2 xk n to k n rozmirnij interval yak invariantnij daye viraz dsk n 2 cdt1 2 cdtk 2 dxk 1 2 dxk n 2 Signatura metriki todi matime takij viglyad k n displaystyle underbrace cdots k underbrace cdots n chasovo podibne en abo k n displaystyle underbrace cdots k underbrace cdots n prostorovo podibne pravilo znakiv Peretvorennya mizh dvoma inercijnimi sistemami vidliku K i K yaki perebuvayut u standartnij konfiguraciyi napriklad peretvorennya bez perevedennya i abo obertannya osi prostoru v giperploshini prostoru i abo povorotiv osi chasu v giperploshini chasu viglyadayut tak t s 8 1 k d s 8 t 8 c 2 v s v 8 b 2 z 1 t 8 1 v s b 2 z x k 1 displaystyle t sigma sum theta 1 k left delta sigma theta t theta frac c 2 v sigma v theta beta 2 zeta 1 t theta right frac 1 v sigma beta 2 zeta x k 1 x k 1 c 2 b 2 z 8 1 k t 8 v 8 z x k 1 displaystyle x k 1 c 2 beta 2 zeta sum theta 1 k frac t theta v theta zeta x k 1 x l x l displaystyle x lambda x lambda de v 1 v 1 0 0 n 1 displaystyle mathbf v 1 v 1 underbrace 0 cdots 0 n 1 v 2 v 2 0 0 n 1 displaystyle mathbf v 2 v 2 underbrace 0 cdots 0 n 1 v k v k 0 0 n 1 displaystyle mathbf v k v k underbrace 0 cdots 0 n 1 ye vektorami shvidkostej K proti K viznachayut vidpovidno zalezhno vid rozmiriv chasu t1 t2 tk b 1 m 1 k c 2 v m 2 displaystyle beta frac 1 sqrt sum mu 1 k frac c 2 v mu 2 z 1 1 b 2 displaystyle zeta frac 1 sqrt 1 beta 2 s 1 2 k l k 2 k 3 k n Tut ds8 ye simvolom Kronekera Ci peretvorennya ye uzagalnennyam peretvorennya Lorenca u fiksovanomu prostorovomu napryamku xk 1 v dilyanci bagatovimirnogo chasu i bagatovimirnogo prostoru Prichinno naslidkova struktura prostoru chasu z dvoma chasovimi vimirami i prostorom odniyeyi rozmirnosti Poznachimo d x h d t s V s h displaystyle frac dx eta dt sigma V sigma eta i d x h d t s V s h displaystyle frac dx eta dt sigma V sigma eta de s 1 2 k h k 1 k 2 k n Dodavannya shvidkostej potim dast V s k 1 V s k 1 z 1 b 2 8 1 k c 2 v 8 V 8 k 1 1 V s k 1 v s b 2 z 1 8 1 k c 2 v 8 V 8 k 1 z displaystyle V sigma k 1 frac V sigma k 1 zeta left 1 beta 2 sum theta 1 k frac c 2 v theta V theta k 1 right 1 frac V sigma k 1 v sigma beta 2 left zeta 1 sum theta 1 k frac c 2 v theta V theta k 1 zeta right V s l V s l 1 V s k 1 v s b 2 z 1 8 1 k c 2 v 8 V 8 k 1 z displaystyle V sigma lambda frac V sigma lambda 1 frac V sigma k 1 v sigma beta 2 left zeta 1 sum theta 1 k frac c 2 v theta V theta k 1 zeta right de s 1 2 k l k 2 k 3 k n Dlya prostoti rozglyanemo tilki odnu prostorovu rozmirnist x3 i dvi chasovi rozmirnosti x1 i x2 tobto x1 ct1 x2 ct2 x3 x Pripustimo sho v tochci O yaka maye koordinati x1 0 x2 0 x3 0 vidbulasya podiya E Pripustimo dali sho z momentu podiyi E projshov interval chasuD T D t 1 2 D t 2 2 0 displaystyle Delta T sqrt Delta t 1 2 Delta t 2 2 geqslant 0 Prichinno naslidkova dilyanka pov yazana z podiyeyu E vklyuchaye sebe bichnu poverhnyu pryamogo krugovogo konusa x1 2 x2 2 x3 2 0 bichnu poverhnyu pryamogo krugovogo cilindra x1 2 x2 2 c2 T2 i vnutrishnyu dilyanku obmezhenu cimi poverhnyami tobto prichinno naslidkova dilyanka vklyuchaye vsi tochki x1 x2 x3 dlya yakih vikonuyutsya umovi x1 2 x2 2 x3 2 0 i x3 cDT abo x1 2 x2 2 c2 T2 i x3 cDT abo x1 2 x2 2 x3 2 gt 0 i x1 2 x2 2 lt c2 T2 Prote signaturi 1 3 i 3 1 fizichno ekvivalentni oskilki dodatna dovzhina vektora v prostori Minkovskogo dlya chasovopodibnih intervaliv ce umovnist yaka zalezhit vid domovlenosti pro znak metrichnogo tenzora Tak deyaki fiziki yak pravilo vikoristovuyut metriku z signaturoyu sho prizvodit do dodatnoyi dovzhini Minkovskogo dlya chasovopodibnih intervaliv i energiyi todi yak prostorova vidstan bude mati vid yemnu dovzhinu Minkovskogo Relyativisti odnak yak pravilo dotrimuyutsya protilezhnoyi konvenciyi sho daye dlya prostorovoyi vidstani dodatnu dovzhinu Minkovskogo dzherelo Vsi vsesviti bagatovimirnogo chasu mozhna rozglyadati yak fridmoni Zv yazok z antropnim principom Yak dokaz trivimirnosti prostoru yaksho ne zvazhati na mozhlivi vimiri nepidtverdzhenoyi teoriyi strun mozhut navoditisya fizichni naslidki pripushennya pro te sho kilkist vimiriv vidriznyayetsya vid troh prostorovih plyus odnogo chasovogo Cej argument vikonanij v dusi antropnogo principu i mozhlivo ce pershij vipadok jogo vikoristannya nehaj i do togo yak koncepciya danogo principu bula sformulovana povnistyu Neyavne uyavlennya pro te sho rozmirnist isnuyuchogo Vsesvitu ye osoblivoyu vpershe visloviv Lejbnic yakij u Mirkuvanni pro metafiziku pripustiv sho svit vidpovidaye takij modeli yaka ye najprostishoyu v gipotezi i najbagatshoyu v yavishah Maks Tegmark rozglyadaye gipotezi svitiv z rozmirnistyu chasu T gt 1 z tochki zoru antropnogo principu i prihodit do visnovku pro nemozhlivist isnuvannya rozumnogo zhittya v takij modeli svitu V zagalnomu vipadku nevidoma diya fizichnih zakoniv u sviti z bagatovimirnim chasom Yaksho T vidminne vid 1 povedinku fizichnih sistem nemozhlivo vivesti zi znannya vidpovidnih diferencialnih rivnyan u chastinnih pohidnih zadacha Koshi dlya hvilovogo rivnyannya staye pogano viznachenoyu Inshimi slovami u sviti z bagatovimirnim chasom nemozhlivo tochno rozrahuvati povedinku fizichnih sistem u majbutnomu a bud yakij rozrahunok fizichnih zakoniv bude mati kilka rozv yazkiv majbutnye takogo vsesvitu nemozhlivo sprognozuvati Rozumne zhittya zdatne vikoristovuvati tehnologiyi v podibnomu vsesviti ne moglo b viniknuti Bilshe togo Tegmark stverdzhuye sho yaksho T gt 1 protoni i elektroni buli b nestijkimi i mogli b rozpadatisya na bilsh masivni chastinki Ce ne problema yaksho chastinki mayut dostatno nizku temperaturu Pri T gt 1 subatomni chastinki yaki rozpadayutsya protyagom pevnogo periodu povodilisya b neperedbachuvano geodezichna liniya ne obov yazkovo bula b maksimalnoyu dlya chasu Vipadok svitu z rozmirnistyu prostoru N 1 i chasu T 3 maye cikavu vlastivist shvidkist svitla ye nizhnoyu mezheyu shvidkosti materialnih til a vsya materiya skladayetsya z tahioniv Tilki v sviti z odnovimirnim chasom mozhna nadijno rozrahuvati stan fizichnih sistem u majbutnomu u sviti bez chasu taki rozrahunki nemozhlivi a v sviti z bagatovimirnim chasom rozrahunok majbutnogo stanu fizichnih sistem daye kilka variantiv rozv yazku Yedinij variant odnogo rozv yazku dlya fizichnih rivnyan u sviti z bagatovimirnim chasom ce ruh sposterigacha zi shvidkistyu svitla koli chas dlya nogo vzagali ne isnuye Tilki svit z trivimirnim prostorom daye dostatnyu stabilnist i skladnist oskilki v sviti z chislom vimiriv prostoru menshe 3 malojmovirna gravitaciya i vinikayut topologichni problemi a v sviti z chislom vimiriv prostoru bilshe 3 nemozhlive isnuvannya stabilnih orbit dlya gravitacijnogo ta elektromagnitnogo poliv abo inshih dalekodijnih vzayemodij Tomu sviti z rozmirnistyu chasu vidminnoyu vid 1 mayut nestachu prognozovanosti a sviti z rozgornutoyu rozmirnistyu prostoru bilshe 3 brak stabilnosti Takim chinom dotrimannya antropnogo principu viklyuchaye bud yaki varianti svitu krim N 3 i T 1 abo N 1 i T 3 v inshih koncepciyah Zv yazok z dovzhinoyu Planka i shvidkist svitla Ruh probnoyi chastinki mozhna opisati koordinatoyu x m c t r f g t L x displaystyle x mu begin pmatrix ct r cdot f left frac gamma tau Lambda right mathbf x end pmatrix sho ye kanonichnim 1 3 vektorom prostoru chasu c t x T displaystyle ct mathbf x T z x R 3 displaystyle x in mathbb R 3 rozshirenim na dodatkovu chasopodibnu koordinatu r f g t L displaystyle r cdot f gamma tau Lambda t displaystyle tau todi drugij parametr chasu r R displaystyle r in mathbb R opisuye rozmir drugogo chasovogo vimiru i g displaystyle gamma ye harakteristichnoyu shvidkistyu takim chinom ekvivalent c displaystyle c f displaystyle f opisuye formu drugogo chasovogo vimiru i L R displaystyle Lambda in mathbb R parametr normalizaciyi takij sho g t L displaystyle gamma tau Lambda bezrozmirne Rozbivayuchi x m x t m x t m displaystyle x mu x t mu x tau mu z x t m c t 0 h x x t m 0 r f g t L 1 h x h 0 1 displaystyle x t mu begin pmatrix ct 0 eta mathbf x end pmatrix x tau mu begin pmatrix 0 r cdot f left frac gamma tau Lambda right 1 eta mathbf x end pmatrix eta in 0 1 i vikoristovuyuchi metriku displaystyle todi mehanika Lagranzha staye L x x x t t r L c 2 t 2 c 2 h 2 x 2 2 c c t g 2 t 2 g 2 2 g g t d f d z z g t L 2 1 h 2 x 2 displaystyle L x dot x x prime t tau frac r Lambda sqrt dot c 2 t 2 c 2 eta 2 dot mathbf x 2 2 dot c ct sqrt gamma prime 2 tau 2 gamma 2 2 gamma gamma prime tau left left frac df dz right z frac gamma tau Lambda right 2 1 eta 2 mathbf x prime 2 Zastosuvannya rivnyannya Ejlera Lagranzha daye d d t L x i d d t L x i L x i 0 displaystyle frac d dt frac partial L partial dot x i frac d d tau frac partial L partial x i prime frac partial L partial x i 0 Yak naslidok ciyeyi modeli bulo vislovleno pripushennya sho shvidkist svitla ne bula postijnoyu v rannij Vsesvitu U filosofiyi1927 roku opublikovano ese Eksperiment iz chasom en V nomu visuvayetsya gipoteza pro isnuvannya lyudini odnochasno na dvoh rivnyah u sub yektivnij techiyi chasu div vis chasu i poza chasovoyu vissyu z mozhlivistyu odnochasno bachiti minule sogodennya i majbutnye div eternalizm U svoyij statti Nerealnist chasu anglijskij filosof Dzhon Ellis Mak Taggart podilyaye chas na dva ryadi ru div Eternalizm Argumenti proti Gipoteza bagatovimirnogo chasu takozh rozglyadalasya v analitichnij filosofiyi Anglijskij filosof en rozglyadaye model Vsesvitu z 6 vimirami 3 prostorovimi i 3 chasovimi yaki mayut nazvi chas vichnist i giparksis hyparxis Pid chasom Dzhon Bennet rozumiye zvichnij dlya nas linijnij perebig podij Do giperchasu vin vidnosit vichnist i giparksis sho mayut vlasni vidminni vid chasu vlastivosti Vichnist Dzhon Bennet nazivaye kosmologichnim chasom i pozachasovim chasom Giparksis vid dav gr ὕpar3is isnuvannya ye stanom buttya i diye v na rivni kvantovih procesiv Poyednannya chasu i vichnosti daye mozhlivist stvorennya bagatovariantnoyi kosmologiyi z paralelnimi vsesvitami yaki dayut velikij spektr mozhlivostej Isnuvannya takogo chasovogo vimiru yak giparksis robit mozhlivim bagato naukovo fantastichnih idej podorozh u chasi peremishennya mizh paralelnimi svitami ta ruh shvidshe vid shvidkosti svitla Hocha ideyi Dzhona Benneta dosit cikavi ale voni zasnovani na sub yektivnih aspektah sprijnyattya chasu i ne mayut povnistyu naukovoyi osnovi Takozh zalishayetsya vidkritim pitannya vimiryuvannya cih gipotetichnih chasovih vimiriv Dlya virishennya problemi sub yektivnogo prohodzhennya chasu Dann zaproponuvav neskinchennu iyerarhiyu vimiriv chasu naselenu analogichnoyu iyerarhiyeyu rivniv svidomosti Dann pripustiv sho v konteksti blokovogo prostoru chasu modelovanogo zagalnoyu teoriyeyu vidnosnosti neobhidnij inshij vimir chasu shob vimiryati shvidkist svogo prosuvannya po vlasnij shkali chasu Ce v svoyu chergu vimagalo rivnya svidomogo ya yakij isnuye na drugomu rivni chasu Ale ti zh sami argumenti potim zastosovuvalisya do cogo novogo rivnya sho vimagaye tretogo rivnya i tak dali v neskinchennij regresiyi V kinci regresiyi buv chudovij generalnij sposterigach yakij isnuvav u vichnosti Vin opublikuvav svoyu teoriyu shodo vishih sniv u svoyij knizi Eksperiment z chasom i prodovzhiv doslidzhuvati yiyi spivvidnoshennya z suchasnoyu fizikoyu v Poslidovnomu Vsesviti The Serial Universe 1934 Jogo neskinchennij regres buv rozkritikovanij yak logichno pomilkovij i nepotribnij hocha taki avtori yak Pristli viznavali mozhlivist jogo drugogo chasovogo vimiru U fantasticiV zavershalnomu romani trilogiyi Lyudi yak bogi Kilce zvorotnogo chasu 1977 Sergij Snyegov vkladaye v usta golovnogo geroya slova V comu i ye moya dumka virvatisya z odnovimirnogo pryamolinijnogo chasu v chas dvovimirnij V romani Roberta Gajnlajna Chislo zvira 1979 Vsesvit maye 6 vimiriv z yakih 3 chasovih poznachayutsya t t tau i t V romani Poranene nebo 1983 serialu Zoryanij shlyah ru fizik 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