Monika Kaushal, Kalyan Chakravarthy Balla, Selvarangan Ponnazhagan
World Quantum Day is an international initiative dedicated to promoting public understanding of quantum science and technology.Celebrated annually on April 14, the date reflects the first three digits of Planck's constant (expressed as 4.14 × 10 -¹⁵ electronvolt-seconds).The word quantum refers to the smallest discrete unit of a physical quantity that can be exchanged or measured.Quantum science developed during the early 20th century.Pioneers such as Max Planck, Albert Einstein, Niels Bohr, and Erwin Schrödinger developed theories explaining how energy and matter behave at atomic and subatomic scales.Medical applications of quantum mechanics include imaging such as ultrasound, magnetic resonance, and positron emission tomography; tissue imaging in microscopy, radiation therapy, and nuclear medicine; drug discovery; quantum communication and cybersecurity; education and public outreach, decision-making, and the development of new computational systems.In this review, we present an updated overview of quantum computing based on an extensive literature review using the databases PubMed, EMBASE, and Scopus.
Newborn•Jun 22, 2026•1 citation