Indima Yefiziksi Kwisayensi Yekhompyutha
I-physics kanye nesayensi yekhompyutha kuvame ukubhekwa njengezinkambu ezimbili ezihlukene: i-physics ihlotshaniswa nemithetho yemvelo, izivivinyo, kanye nezibalo; kuyilapho isayensi yekhompyutha ihlotshaniswa nesofthiwe, ama-algorithms, kanye nezinhlelo zedijithali. Kodwa-ke, uma kubhekwa ngokucophelela, lokhu kokubili kuhlobene kakhulu. Imiqondo eminingi eyinhloko kwisayensi yekhompyutha izalwa ngemibono kwi-physics, kuyilapho intuthuko yekhompyutha yesimanje iqhubela phambili nentuthuko kwi-physics ngokusebenzisa ukulingisa kanye nokuhlaziywa kwedatha. Lesi sihloko sihlola indima ye-physics kwisayensi yekhompyutha, kusukela ezisekelweni zehadiwe kuya ekuthuthukisweni okuphambili njenge-quantum computing kanye nobuhlakani bokwenziwa.
1. Ifiziksi njengesisekelo sehadiwe yekhompyutha
Indima esobala kakhulu yefiziksi kwisayensi yamakhompyutha ibonakala kuhadiwe. Amakhompyutha, kungakhathaliseki ukuthi "ahlakaniphe kangakanani" isofthiwe yawo, asathembele ezingxenyeni zomzimba ezisebenza ngokusekelwe ezimisweni zomzimba. Ama-transistors, isibonelo, ayinhliziyo yamaprosesa nenkumbulo. Ama-transistors anamuhla asebenzisa izakhiwo zama-semiconductors achazwe yi-solid-state physics kanye ne-quantum mechanics. Imiqondo efana nama-energy band (izikhala zebhendi), ukuhamba kwama-electron, i-doping, kanye nokuziphatha kwama-electron ngaphakathi kwezinto kunquma ukuthi i-chip iyashesha yini, inamandla kahle, futhi izinzile.
Ngaphezu kwalokho, ukuphathwa kokushisa kuma-processor kuyinkinga ebalulekile yefiziksi yakudala. Uma ukusebenza kwe-CPU noma i-GPU kuphakeme, amandla amaningi aguqulwa abe ukushisa. Uma kungalawulwa, ukushisa kungonakalisa ukusebenza noma kulimaze izingxenye. Ngakho-ke, ukwakheka kokupholisa—kusukela kuma-heatsink namafeni kuya ezinhlelweni zokupholisa uketshezi kuya ekwakhiweni kwezingxenye—kusekelwe emibonweni yokudluliselwa kokushisa (ukuhanjiswa kokushisa, ukuhanjiswa komoya, imisebe) kanye nokuguquguquka koketshezi.
2. Ukuxhumana nge-elekthronikhi, amasignali, kanye nedatha
Amakhompyutha awazimele wodwa; axhumana namanye amadivayisi ngamanethiwekhi kanye nemidiya yokudlulisa. I-physics yamaza kagesi idlala indima ebalulekile lapha. I-Wi-Fi, i-Bluetooth, amanethiwekhi eselula, ngisho nokuxhumana ngesathelayithi kuncike ekusakazweni kwamaza omsakazo. Imiqondo efana nokuvama, i-bandwidth, ukuphazamiseka, umsindo, ukuncishiswa, kanye nokufiphala kwezindlela eziningi yizici ezibalulekile ekunqumeni ikhwalithi yesiginali.
Kwisayensi yekhompyutha, ukuqonda i-signal physics kuphathelene nokufakwa kwekhodi kwesignali kanye nokucutshungulwa kwayo. Ukulungiswa kwamaphutha kanye namasu okuguqulwa kwedatha athuthuke ngenxa yeqiniso elingokoqobo: amasignali ahlala ethintwa umsindo. Nakuba ama-algorithm okulungisa amaphutha eyindawo ye-informatics, isisusa sawo sivela ekulinganiselweni okungokwenyama kwemidiya yokudlulisa kanye namadivayisi.
3. I-physics yekhompyutha: ukulingisa njenge-"laboratory yedijithali"
I-physics iphinde isebenzise isayensi yekhompyutha, kodwa ubudlelwano bunezindlela ezimbili: izidingo ze-physics ziqhuba ukuthuthukiswa kwezindlela ezintsha zokubala. Izenzakalo eziningi zemvelo kunzima ukuzihlola ngqo ngenxa yezindleko eziphakeme, ingozi, noma ukungakwazi ukuzibona ngqo. Yilapho ukulingisa kwekhompyutha kuba "ama-laboratories edijithali." Ukulingisa kwe-Fluid dynamics (CFD), ukulingisa isimo sezulu, ukulingisa izinto, noma ukubalwa kwe-particle trajectory konke kudinga ama-algorithms ezinombolo asebenzayo.
Ngokombono wesayensi yamakhompyutha, le nselele iveze amagatsha afana ne-high-performance computing (HPC), i-parallel computing, kanye nokwenza ngcono i-algorithm. Amasu afana nendlela ye-finite element, izindlela ze-finite difference, kanye ne-Monte Carlo asetshenziswa kabanzi ukuxazulula izilinganiso ze-physics eziyinkimbinkimbi. Ngakho-ke, i-physics ayigcini nje ngokusebenzisa amakhompyutha, kodwa futhi iyisishayeli sokusungula izinto ezintsha ekwakhiweni kwezakhiwo zekhompyutha kanye nama-algorithms.
4. Ithiyori yezibalo kanye ne-mechanics yolwazi
Ukuxhumana okunengqondo kakhulu phakathi kwefiziksi nesayensi yamakhompyutha kubonakala ku-mechanics yezibalo kanye nethiyori yolwazi. Umqondo we-entropy, isibonelo, wavela ku-physics ukuchaza izinga lokuphazamiseka ohlelweni. Ngokuthakazelisayo, i-entropy nayo ingumqondo oyinhloko ku-information theory (Shannon entropy), elinganisa ukungaqiniseki noma okuqukethwe kolwazi kudatha.
Emikhakheni yokucindezelwa kwedatha, i-cryptography, kanye nokufunda komshini, imiqondo ye-entropy, i-probability, kanye nokusatshalaliswa kwezibalo idlala indima ebalulekile. Amamodeli angenzeka njenge-Bayesian inference noma amaketanga e-Markov alingisa kakhulu indlela i-physics eqonda ngayo izinhlelo ezakhiwe yizinhlayiya eziningi noma iziguquguquko ezingahleliwe. Ngamanye amazwi, uhlaka lwe-physics lokubhekana nokungaqiniseki kanye nobunzima luphefumulela izindlela zokubala ezisingatha idatha nolwazi.
5. I-Quantum computing: ukuhlangana okuqondile kakhulu kwefiziksi kanye ne-informatics
I-Quantum computing iyisibonelo esisobala kakhulu sendima yefiziksi kwisayensi yekhompyutha yanamuhla. Ngokungafani namakhompyutha akudala asebenzisa ama-bits (noma u-0 noma u-1), amakhompyutha e-quantum asebenzisa ama-qubits, angaba se-superposition. Ngaphezu kwe-superposition, isenzakalo se-quantum entanglement senza izinhlobo zokubala izinhlelo zakudala zingakwazi ukuzifeza ngendlela efanayo.
Ngokombono wesayensi yekhompyutha, ukubalwa kwe-quantum kudinga izindlela ezintsha zokucabanga: ama-algorithms afana no-Shor (factorization) kanye no-Grover (search) abonisa izinzuzo zethiyori ngaphezu kwama-algorithms athile akudala. Kodwa-ke, ukuqashelwa kwawo okusebenzayo kuncike ngokuphelele ku-physics: ukugcina ukuhambisana kwe-qubit, ukunciphisa ukungalingani, ukulawula izinhlelo emazingeni okushisa aphansi kakhulu, kanye nokuklama amasekethe e-quantum azinzile. Ngakho-ke, ukuthuthukiswa kwe-quantum computing kuyiphrojekthi ehlanganisa imikhakha eyahlukene edinga izazi zefiziksi kanye nososayensi bekhompyutha ukuthi basebenzisane.
6. Ifiziksi kwimidwebo yekhompyutha kanye nokulingisa okubonakalayo
Kuma-computer graphics, i-physics idlala indima ebaluleke kakhulu, ikakhulukazi ekulingiseni okungokoqobo. Amasu okudweba anamuhla azama ukulingisa indlela ukukhanya okuxhumana ngayo nezindawo: ezibonakalisiwe, eziphindiwe, ezimuncwayo, noma ezihlakazekile. Amamodeli okukhanyisa afana nokulandelela imisebe kanye nokulandelela indlela akhiwe phezu kwemibono evela ku-geometric optics kanye ne-radiation physics.
I-physics ayisetshenziselwa ukukhanya kuphela; isetshenziselwa futhi ukulingisa ukunyakaza nokusebenzisana kwezinto: ukulingisa indwangu, ukulingisa uketshezi, intuthu, ukuqhuma, ngisho nokuguquguquka kwe-ragdoll emidlalweni. Izinjini ze-physics zisebenzisa imithetho kaNewton, ukulondolozwa komfutho, ukungqubuzana, kanye nokushayisana. Nakuba ngokuvamile kulula ngenxa yesivinini, izimiso zomzimba zihlala ziyisisekelo sokwenza ukunyakaza kubonakale "kungenzeka" futhi kuvumelana ngokubonakalayo.
7. Izinzwa, amarobhothi, kanye nezinhlelo ezifakiwe
Isayensi yekhompyutha ayigcini nje ezikrinini; ikhona kumarobhothi, ezimotweni ezizimele, kumadivayisi ezokwelapha, kanye ne-Internet of Things (IoT). Kumarobhothi kanye nezinhlelo ezifakiwe, i-physics inquma kakhulu ukuthi izinhlelo "zizwa" kanjani umhlaba. Izinzwa ezifana nama-accelerometer, ama-gyroscope, ama-magnetometer, amakhamera, i-lidar, kanye ne-radar zisebenza ngezimiso ezithile zomzimba: kusukela ku-inertia kanye namasimu kazibuthe kuya kumaza kagesi.
Ama-algorithm ekhompyutha abe esecubungula idatha yenzwa ukuze alinganisele indawo (ukwenziwa kwendawo), akhe amamephu, futhi enze izinqumo. Izindlela ezifana nezihlungi ze-Kalman, ukuhlanganiswa kwenzwa, noma ukulawulwa kwe-PID zihlobene kakhulu nokulingisa izinhlelo zomzimba kanye ne-motion dynamics. Yilapho i-physics isiza khona amakhompyutha ukuqonda umhlaba wangempela, hhayi idatha engabonakali nje kuphela.
8. Ukusebenza kahle kwamandla kanye nemikhawulo ebonakalayo yokubala
Intuthuko yekhompyutha ayinqunywa nje kuphela ngamandla okusebenzisa ikhompyutha kodwa futhi nangokusebenzisa kahle amandla. Izikhungo zedatha zisebenzisa ugesi omningi, okwenza ukusetshenziswa kahle kwamandla kube yinkinga ebalulekile. I-physics idlala indima ekuqondeni ukusetshenziswa kwamandla, ukushabalaliswa kokushisa, ukwakheka kwesistimu yokupholisa, kanye nokukhetha izinto ezisebenza kahle kakhulu kanye nezakhiwo ze-chip.
Okubaluleke kakhulu, i-physics iphinde ibhekane nemikhawulo yemfundiso yokubala, isibonelo ngesimiso sikaLandauer, esithi ukususwa kolwazi okungenakuguqulwa kunezindleko zamandla ezincane kakhulu. Lokhu kubonisa ukuthi ukubala akuyona nje inqubo enengqondo, kodwa futhi kuyinqubo ebonakalayo engaphansi kwemithetho yemvelo.
Isiphetho
Indima yefiziksi kwisayensi yamakhompyutha inkulu futhi iyisisekelo. Ifiziksi yakha isisekelo sehadiwe ngokusebenzisa ama-semiconductor kanye nama-electronics, ithonya ukuxhumana kwedatha ngamagagasi kagesi, iqhuba ukuthuthukiswa kwezindlela zokubala ezithuthukisiwe ngokusebenzisa ukulingisa kwesayensi, futhi ihlinzeka ngohlaka lomqondo ngokusebenzisa ithiyori yolwazi kanye ne-mechanics yezibalo. Enkathini entsha, ifiziksi kanye ne-informatics kuhlangana ngqo kwi-quantum computing, ihluzo ezingokoqobo, amarobhothi, kanye nokwenza ngcono amandla.
Ukuqonda i-physics kusiza ososayensi bekhompyutha ukuthi bangagcini nje "ngokusebenzisa" amakhompyutha, kodwa futhi baqonde ngokujulile imikhawulo kanye namandla obuchwepheshe. Ngokuphambene nalokho, isayensi yekhompyutha inikeza i-physics amathuluzi okuxazulula izinkinga ezazingenakwenzeka ngaphambili. Ekugcineni, lokhu kokubili kuyaqinisana: isayensi yekhompyutha ithuthuka ngenxa ye-physics, kanye ne-physics ithuthuka ngenxa ye-computer.
