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All Journal Journal of Tecnologia Quantica Sharia Oikonomia Law Journal
Viktoria Sokolova
Shakarim University
Physics

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Ground-State Cooling of a Nanomechanical Resonator via Squeezed Light Injection in a Resolved-Sideband Regime Viktoria Sokolova; Igor Vasiliev; Natalya Pavlova
Journal of Tecnologia Quantica Vol. 3 No. 2 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/quantica.v3i2.4160

Abstract

Ground-state cooling of nanomechanical resonators is a fundamental requirement for realizing high-fidelity quantum control, precision sensing, and coherent quantum information processing. Conventional resolved-sideband cooling has achieved remarkable progress; however, quantum back-action, optical losses, thermal fluctuations, and finite cavity linewidths continue to limit cooling performance under realistic experimental conditions. This study aimed to evaluate the effectiveness of squeezed light injection in enhancing ground-state cooling while investigating the interactions among optical squeezing, optomechanical coupling, cavity dynamics, quantum back-action suppression, and thermal phonon reduction within the resolved-sideband regime. A mixed-methods sequential explanatory design was employed using 14,000 large-scale optomechanical simulations complemented by experimental benchmark datasets, cavity calibration records, laboratory implementation reports, and expert evaluations. Quantitative data were analyzed through generalized linear mixed-effects modeling, Monte Carlo uncertainty estimation, sensitivity analysis, and multivariate statistical techniques, whereas qualitative evidence was interpreted using thematic analysis of experimental observations and technical documentation. Findings demonstrated that squeezed-light-assisted cooling significantly reduced the final mean phonon occupation, improved ground-state occupation probability, suppressed quantum back-action, preserved mechanical coherence, and enhanced cooling efficiency across multiple optomechanical configurations. Results indicate that engineered quantum fluctuations provide an effective mechanism for overcoming practical limitations associated with conventional sideband cooling. The proposed framework establishes a robust foundation for developing scalable optomechanical platforms supporting quantum sensing, hybrid quantum systems, precision metrology, and future quantum information technologies.
ISLAMIC FINANCE AND CRISIS MANAGEMENT IN KAZAKHSTAN: LESSONS FROM THE COVID-19 PANDEMIC Maria Alexandrovna; Sergey Kuznetsov; Viktoria Sokolova
Sharia Oikonomia Law Journal Vol. 3 No. 3 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/solj.v3i3.2200

Abstract

The COVID-19 pandemic exposed structural vulnerabilities in financial systems worldwide, prompting renewed interest in ethical and resilient financing models. In Kazakhstan, where Islamic finance is still nascent, the crisis highlighted both challenges and opportunities for faith-based financial instruments to contribute to national crisis response mechanisms. This study examines the role of Islamic finance in Kazakhstan’s financial resilience during the COVID-19 pandemic, assessing its potential integration into broader economic recovery frameworks. A mixed-methods approach was adopted, combining doctrinal review of Kazakhstan’s Islamic finance legislation with semi-structured interviews involving policymakers, Shariah scholars, and financial practitioners. The findings indicate that while Islamic finance institutions remained limited in size and scope, their emphasis on risk-sharing, social solidarity (zakat, waqf), and asset-backed structures offered valuable alternatives during economic shocks. Islamic microfinance and charitable models proved especially relevant for supporting vulnerable populations. The study concludes that with regulatory development, institutional support, and public awareness, Islamic finance can enhance Kazakhstan’s financial system diversification and crisis response capability. The research contributes to the discourse on ethical finance as a complementary mechanism for economic resilience in emerging markets.
Co-Authors Igor Vasiliev Maria Alexandrovna Natalya Pavlova Sergey Kuznetsov