Annie Pichery, Matthias Meister, Baptist Piest, Jonas Böhm, Ernst Maria Rasel, Eric Charron, Naceur Gaaloul
{"title":"相互作用的多种量子气体动力学的有效数值描述","authors":"Annie Pichery, Matthias Meister, Baptist Piest, Jonas Böhm, Ernst Maria Rasel, Eric Charron, Naceur Gaaloul","doi":"10.1116/5.0163850","DOIUrl":null,"url":null,"abstract":"We present a highly efficient method for the numerical solution of coupled Gross–Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose–Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb–K mixture recently performed with the payload of a sounding rocket experiment.","PeriodicalId":93525,"journal":{"name":"AVS quantum science","volume":"43 42","pages":"0"},"PeriodicalIF":4.2000,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Efficient numerical description of the dynamics of interacting multispecies quantum gases\",\"authors\":\"Annie Pichery, Matthias Meister, Baptist Piest, Jonas Böhm, Ernst Maria Rasel, Eric Charron, Naceur Gaaloul\",\"doi\":\"10.1116/5.0163850\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present a highly efficient method for the numerical solution of coupled Gross–Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose–Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb–K mixture recently performed with the payload of a sounding rocket experiment.\",\"PeriodicalId\":93525,\"journal\":{\"name\":\"AVS quantum science\",\"volume\":\"43 42\",\"pages\":\"0\"},\"PeriodicalIF\":4.2000,\"publicationDate\":\"2023-11-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"AVS quantum science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1116/5.0163850\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"QUANTUM SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"AVS quantum science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1116/5.0163850","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"QUANTUM SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Efficient numerical description of the dynamics of interacting multispecies quantum gases
We present a highly efficient method for the numerical solution of coupled Gross–Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose–Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb–K mixture recently performed with the payload of a sounding rocket experiment.