{"_id":"FFveYh6w3ps3HTdaR","bibbaseid":"alexandrov-boseeinsteincondensationofstronglycorrelatedelectronsandphononsincupratesuperconductors-2007","downloads":0,"creationDate":"2019-03-06T18:12:57.239Z","title":"Bose–Einstein condensation of strongly correlated electrons and phonons in cuprate superconductors","author_short":["Alexandrov, A. S."],"year":2007,"bibtype":"article","biburl":"https://bibbase.org/zotero/abiancon","bibdata":{"bibtype":"article","type":"article","title":"Bose–Einstein condensation of strongly correlated electrons and phonons in cuprate superconductors","volume":"19","issn":"0953-8984","url":"http://dx.doi.org/10.1088/0953-8984/19/12/125216","doi":"10.1088/0953-8984/19/12/125216","abstract":"The long-range Fröhlich electron–phonon interaction has been identified as the most essential for pairing in high-temperature superconductors owing to poor screening, as is now confirmed by optical, isotope substitution, recent photoemission and some other measurements. I argue that low-energy physics in cuprate superconductors is that of superlight small bipolarons, which are real-space hole pairs dressed by phonons in doped charge-transfer Mott insulators. They are itinerant quasiparticles existing in the Bloch states at low temperatures as also confirmed by the continuous-time quantum Monte–Carlo algorithm (CTQMC) fully taking into account realistic Coulomb and long-range Fröhlich interactions. Here I suggest that a parameter-free evaluation of T c , unusual upper critical fields, the normal state Nernst effect, diamagnetism, the Hall–Lorenz numbers and giant proximity effects strongly support the three-dimensional (3D) Bose–Einstein condensation (BEC) of mobile small bipolarons with zero off-diagonal order parameter above the resistive critical temperature T c at variance with phase fluctuation scenarios of cuprates.","number":"12","journal":"Journal of Physics: Condensed Matter","author":[{"propositions":[],"lastnames":["Alexandrov"],"firstnames":["A.","S."],"suffixes":[]}],"month":"March","year":"2007","pages":"125216+","bibtex":"@article{alexandrov_boseeinstein_2007,\n\ttitle = {Bose–{Einstein} condensation of strongly correlated electrons and phonons in cuprate superconductors},\n\tvolume = {19},\n\tissn = {0953-8984},\n\turl = {http://dx.doi.org/10.1088/0953-8984/19/12/125216},\n\tdoi = {10.1088/0953-8984/19/12/125216},\n\tabstract = {The long-range Fröhlich electron–phonon interaction has been identified as the most essential for pairing in high-temperature superconductors owing to poor screening, as is now confirmed by optical, isotope substitution, recent photoemission and some other measurements. I argue that low-energy physics in cuprate superconductors is that of superlight small bipolarons, which are real-space hole pairs dressed by phonons in doped charge-transfer Mott insulators. They are itinerant quasiparticles existing in the Bloch states at low temperatures as also confirmed by the continuous-time quantum Monte–Carlo algorithm (CTQMC) fully taking into account realistic Coulomb and long-range Fröhlich interactions. Here I suggest that a parameter-free evaluation of T c , unusual upper critical fields, the normal state Nernst effect, diamagnetism, the Hall–Lorenz numbers and giant proximity effects strongly support the three-dimensional (3D) Bose–Einstein condensation (BEC) of mobile small bipolarons with zero off-diagonal order parameter above the resistive critical temperature T c at variance with phase fluctuation scenarios of cuprates.},\n\tnumber = {12},\n\tjournal = {Journal of Physics: Condensed Matter},\n\tauthor = {Alexandrov, A. S.},\n\tmonth = mar,\n\tyear = {2007},\n\tpages = {125216+}\n}\n\n","author_short":["Alexandrov, A. S."],"key":"alexandrov_boseeinstein_2007","id":"alexandrov_boseeinstein_2007","bibbaseid":"alexandrov-boseeinsteincondensationofstronglycorrelatedelectronsandphononsincupratesuperconductors-2007","role":"author","urls":{"Paper":"http://dx.doi.org/10.1088/0953-8984/19/12/125216"},"downloads":0},"search_terms":["bose","einstein","condensation","strongly","correlated","electrons","phonons","cuprate","superconductors","alexandrov"],"keywords":[],"authorIDs":[],"dataSources":["qfSWh53k794ZuPrG9"]}