Density Fluctuations for Squeezed Number State and Coherent Squeezed Number State in Flat FRW Universe

被引：1

作者：

Gangal, Dhwani ^{[1
]}

Yadav, Sudhava ^{[1
]}

Venkataratnam, K. K. ^{[1
]}

机构：

[1] Malaviya Natl Inst Technol Jaipur, Dept Phys, Jaipur 302017, India

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2025年 / 64卷 / 04期

关键词：

Squeezing parameter; Energy momentum tensor; Squeezed Number State (SNS); Coherent Squeezed Number State (CSNS); Density fluctuations; Semiclaasical gravity; QUANTUM FLUCTUATIONS; OSCILLATORY PHASE; NONCLASSICAL INFLATON; PARTICLE-PRODUCTION; REPRESENTATION; FIELDS; ANISOTROPY; CREATION; GRAVITY;

D O I：

10.1007/s10773-025-05948-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the density fluctuations for Coherent Squeezed Number State (CSNS) and Squeezed Number States (SNS) formalism in the Semiclassical theory of gravity in a flat FRW universe. We used the Number state evolution of the oscillatory phase of inflation for coherent squeezed number state and squeezed number state formalisms. We analyzed that density fluctuations for SNS depend upon squeezing parameter and number state while for CSNS density fluctuations depend upon squeezing parameter, number state, and coherent state parameter. These parameters play an important role in the quantum consideration of SNS and CSNS. The results of the analysis show that an increase in density fluctuations for both SNS and CSNS demonstrates the quantum behavior of SCEE as well as the production of various kinds of particles in these states.

引用

页数：22

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