## The Expanding Universe of Quantum Technologies: Understanding its Revolutionary Impacts

Understanding the principles of quantum physics and the rise of quantum technologies is increasingly becoming crucial in a world that hinges upon the precipices of technological transformation. This piece endeavors to shed light on the varied facets of quantum technology from its foundational concepts to real-world applications, while aiming to provide the reader with a comprehensive overview of this dynamic field.

## Fundamental Principles of Quantum Mechanics

Quantum mechanics is a fundamental theory in physics that describes the physical properties of nature at the scale of atoms and subatomic particles. It diverges from classical physics due to phenomena such as entanglement, superposition, and the uncertainty principle which defy conventional notions of reality.

## Quantum Superposition and Entangleness Explained

Superposition refers to a quantum system existing in multiple states at once until it is measured. Meanwhile, entanglement is a phenomenon where particles become interconnected so that the state of one instantly influences the other, regardless of distance. These phenomena are the core of what differentiates quantum physics from classical physics and serve as vital components in quantum computing.

## Quantum Computing: Breaking limits of Computational Power

Quantum computers utilize these properties of quantum bits, or qubits, to process information in ways unthinkable for traditional computers. Unlike binary bits, which are either 0 or 1, qubits can be both simultaneously due to superposition. This ability enables quantum computers to handle immensely complex problems much faster than their classical counterparts.

## Current Quantum Computer Landscape and Future Prospects

While quantum computing is still at a nascent stage, big players such as IBM, Google, and various startups are pioneering the development of quantum processors. Governments and industries anticipate revolutionary applications in cryptography, material science, pharmaceuticals, and optimization problems among others.

## Challenges in Developing Quantum Computers

Despite its potential, there are tremendous challenges in creating practical and widespread quantum computers. Technical difficulties such as error correction, coherence maintenance (where qubits retain their quantum state), and developing scalable systems are ongoing areas of research.

## Applications Beyond Computing: Cryptography to Medicine

The implications of quantum technology extend beyond computing. Quantum cryptography promises unbreakable encryption while in medicine, understanding quantum effects in biological processes could lead to groundbreaking treatments. Surveying these applications reveals how deeply quantum technologies could permeate various sectors.

## Quantum Cryptography: The Last Word In Secure Communications?

Leveraging the properties of quantum mechanics introduces new methods for secure communication. Quantum key distribution (QKD) exploits the nature of quantum states to share keys impermeably between parties. When a third party attempts to eavesdrop on a QKD communication, it invariably alters the key’s state thus signaling an intrusion.

## Innovations in Material Science and Drug Discovery

Material science is benefiting from quantum simulations that allow exploration at an atomic level never before possible, a boon for discovering new materials at an accelerated pace. Similarly, drug discovery processes use quantum computations to analyze molecular interactions more precisely, reducing trial and error in laboratories.

## Considerations And Impact On Society

The social and ethical considerations surrounding quantum technology are immense; national security concerns stand alongside opportunities for education reform and job market evolution as society adapts to these advances.