2021-P4 Best Solutions and Final Results

Problem 4 – Shock wave in an electron gas

The best solution award for problem 4. is shared between Nikita Semenin – a nicely written full and compact solution covering both parts A and B; Huiyuan Wang – a nice phase diagram and compact explanation of how the adiabatic invariant works (the solution of part 4A is found on pg 1-2); Zhening Li – conservation of the adiabatic invariant derived from basic mechanics principles for the given process; Lotus Chen – a simple solution based on the quantum-mechanical version of the adiabatic invariant; Oliwier Urbanski  a special bonus for his simulation applet.

Final results for Problem 4

Pre-university students

First NameSurnameCountrySchoolPr4-total
ZheningLiCanadaSir John A. Macdonald Secondary School3.24
OliwierUrbańskiPolandLiceum Ogólnokształcące nr 7 w Poznaniu2.69
Vlad-ȘtefanOrosRomania“Grigore Moisil” Informatics High School1.41
Sebastián AndrésArévalo AguirreEl SalvadorInstituto Emiliani0.86
AlexandarRoussevBulgariaFirst Language School0.80
LotusChenChinaNo.2 High School Shijiazhuang1.47
AntoniaGhitaRomaniaInternational Computer High School of Bucharest1.07
JoshuaTeoSingaporeNUS High School0.89
M. SubhiAbo RdanSyriaKnowledge private schools0.76
Caio AugustoSiqueira da SilvaBrazilColégio Objetivo Integrado0.66
Ameya VikramaSinghIndiaFIITJEE Junior College0.31
VukHipSerbiaMathematical grammar school0.33
JieWangChinaZhangjiakou No.1 Middle School0.27
DušanBegušSerbiaMathematical Grammar School0.30

University students

First NameSurnameCountryUniversityPr4-total
NikitaSemeninRussiaMoscow Insitute of Physics and Technology3.09
TevžLotričSloveniaUniversity of Oxford1.18
HuiyuanWangChinaUniversity of Cambridge2.96
JaroslavHermanCzechiaCharles University, Prague0.68
YanjunZhouUnited KingdomUniversity of Oxford1.12
QianLinChinaUniversity of Oxford1.23
RicardsKnipsisLatviaUniversity of Manchester0.92
DanielSchillerGermanyRuprecht-Karls-Universität Heidelberg0.53

Participating countries: Algeria, Azerbaijan, Australia, Bangladesh, Belarus, Belgium, Bosnia and Herzegovina, Bolivia, Brazil, Bulgaria, Cambodia, Canada, China, Croatia, Czechia, Egypt, El Salvador, Estonia, Finland, Georgia, Germany, Greece, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Kazakhstan, Kenya, Korea, Kyrgyzstan, Latvia, Lebanon, Lithuania, Macedonia, Malaysia, Mexico, Moldova, Mongolia, Nepal, Nigeria, North Macedonia, Pakistan, Peru, Philippines, Poland, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Thailand, Turkey, Turkmenistan, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vietnam.