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On a solitonic approach to coloured reggeon field theory

О сОлИтОННОМ пОДхОДЕ к цВЕтНОИ РЕДжЕОННОИ пОлЕВОИ тЕОРИИ

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Il Nuovo Cimento A (1965-1970)

Summary

The intrinsic parallelism in the physical contents of the nonlinear Schrödinger equation (NLSE) and the nonrelativistic reggeon field theory (RFT) has been utilised to apply the nonperturbative approach to RFT. Against the usual field-theoretic approach, the path integral method has been utilized to achieve semi-classical quantization of the solitonic mode extracted by the inverse scattering transform. The eigenfrequencies and the stability angles are derived and the associated renormalization problem has been pointed out. Multiple modes of reggeons considered here belong to the noncompact group (1,1) of Lie algebra.

Riassunto

Si usa il parallelismo intrinseco nel contenuto fisico dell’equazione di Schrödinger non lineare (NLSE) e nella teoria dei campi reggeonici non relativistici per applioare l’approccio non perturbativo a RFT. Contrariamente all’approccio consueto dei campi teorici, il metodo dell’integrale di pereorso è stato utilizzato per raggiungere la quantizzazione semiclassica del modo solitonico estratto dalla trasformata di scattering inverso. Si derivano le auto frequenze e gli angoli di stabilità e si sottolinea il problema associato della rinormalizzazione. I modi multipli dei reggeoni considerati qui appartengono al gruppo (1,1) non compatto dell’algebra di Lie.

РЕжУМЕ

ВНУтРЕННИИ пАРАллЕл ИжМ В ФИжИЧЕскОМ сОДЕРжАНИИ НЕлИНЕИН ОгО УРАВНЕНИь шРЕДИНгЕР А И НЕРЕльтИВИстскОИ РЕДжЕОННОИ пОлЕВОИ тЕОРИИ ИспОл ьжУЕтсь Дль ФОРМУлИРОВкИ НЕп ЕРтУРБАцИОННОгО пОД хОДА к РЕДжЕОННОИ пОлЕВОИ т ЕОРИИ. МЕтОД ИНтЕгРИРОВАНИ ь пО тРАЕктОРИьМ пРИМ ЕНьЕтсь Дль пОлУЧЕНИь пОлУклАсс ИЧЕскОгО кВАНтОВАНИь сОлИтОН НОИ МОДы. ВыВОДьтсь сО БстВЕННыЕ ЧАстОты И УстОИЧИВыЕ Углы. ОБсУжДАЕтсь пРО БлЕМА пЕРЕНОРМИРОВк И. кРАтНыЕ МОДы РЕДжЕОНОВ, РАссМ ОтРЕННыЕ В РАБОтЕ, пРИНАДлЕжАт НЕкОМпАктНОИ гРУппЕ (1,1) АлгЕБРы лИ.

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Roy Chowdhury, A., Sidhanta, B. On a solitonic approach to coloured reggeon field theory. Nuov Cim A 95, 243–256 (1986). https://doi.org/10.1007/BF02905817

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