📡 Quantum Teleportation (Not Sci-Fi Transport!)
First: what teleportation is not ❌ It does not move particles❌ It does not send information faster than light❌ It does not copy a quantum state ✅ It transfers an…
🔒 How to Prove a State Is Not Separable
We say a two-qubit pure state is separable if it can be written as: [latex]|\psi\rangle_{AB} = |\phi\rangle_A \otimes |\chi\rangle_B[/latex] If this is impossible, the state is entangled. ✅ Method 1…
🔔 Bell State Circuit — What It Is and Why It Matters
What is a Bell state? A Bell state is a maximally entangled two-qubit state.The most commonly used Bell state is: [latex]|\Phi^+\rangle = \frac{1}{\sqrt{2}}(|00\rangle + |11\rangle)[/latex] It has perfect quantum correlations…
🔗 Quantum Entanglement (Clear & Intuitive)
What entanglement really means (beyond the buzzword) Entanglement is not just correlation.It is a non-classical correlation where: The quantum state of the whole system is well-defined,but the states of the…
Quantum Computing Part 2
Quantum computing harnesses the unique laws of quantum mechanics to perform calculations in ways that are impossible for classical computers. At the core of quantum computation is the quantum circuit…
⭐ Why |0⟩ and |1⟩ Are Orthogonal but Appear as North and South on the Bloch Sphere?
One of the first things people learn about qubits is that the basis states |0⟩ and |1⟩ are orthogonal.Mathematically, this means: \[\langle 0 | 1 \rangle = 0\] Because of…
Exploring Single-Qubit and Multi-Qubit States with Qiskit
This post documents an interactive laboratory session focused on manipulating and visualizing single and multi-qubit quantum states using the Qiskit framework. The exercises cover fundamental concepts, including state initialization, quantum…
Quantum Computing Part 1
This post introduces the fundamental concepts that differentiate quantum computing from classical computing, primarily focusing on the shift from classical bits to quantum bits (qubits) and the implications of this…