Quantum vs Classical Notions of Reality
The contrast between quantum and classical notions of reality is one of the most profound paradigm shifts in the history of science. While classical physics, built by Newton, Maxwell, and….
Tag: quantum information
Valley Qubits
Valley qubits are an emerging type of quantum bit that exploit the valley degree of freedom of electrons in certain semiconducting materials, particularly two-dimensional (2D) materials like transition metal dichalcogenides….
Quantum Skyrmions
Quantum skyrmions are emerging as one of the most fascinating quasiparticles in condensed matter physics, with promising implications for quantum computing, spintronics, and data storage. Rooted in both particle physics….
Quantum Router Architectures
1. Introduction: What Is a Quantum Router? In classical networks, routers direct data packets across the internet using pre-defined protocols and addresses. They serve as the gatekeepers of information flow,….
Majorana Fermions in Condensed Matter
1. Who or What Is a Majorana Fermion? The idea of a Majorana fermion originated from the Italian physicist Ettore Majorana in 1937. He proposed a type of fermion (a….
Quantum Coherence and Thermodynamics
1. Introduction: The Intersection of Quantum and Thermodynamics Thermodynamics is a well-established field that deals with energy, heat, and work in macroscopic systems. On the other hand, quantum mechanics governs….
Photonic Quantum Gates
In classical computing, we use logic gates (like AND, OR, NOT) to perform operations on bits. Each gate manipulates bits—values of 0 or 1—based on defined rules. In quantum computing,….
Quantum Coherence in Optics
To understand quantum coherence, we need to first explore classical coherence. Coherence is a term that describes how predictably waves behave over time and space. If two light waves are….
Quantum Optomechanics
Optomechanics is the study of how light (optics) and mechanical systems (mechanics) interact. More specifically, quantum optomechanics looks at how quantum light interacts with tiny mechanical oscillators, such as membranes,….
No-Cloning Theorem
The No-Cloning Theorem is a fundamental principle of quantum mechanics that states: It is impossible to create an exact copy of an arbitrary unknown quantum state. In simple terms, you….