https://yanevskiv.com/ 2026-06-06T18:10:14+00:00 https://yanevskiv.com/ https://yanevskiv.com/_media/logo.png text/html 2026-05-25T20:24:06+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/writing-style?rev=1779740646&do=diff text/html 2026-05-25T19:22:43+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/x220-gpu-rendering-with-hyprland?rev=1779736963&do=diff GPU Rendering Artifacts on ThinkPad X220 with Hyprland — Diagnosis & Fix Hardware & Software Context ------ Machine Lenovo ThinkPad X220 (4291SWP) GPU Intel HD Graphics 3000 — Sandy Bridge, Gen 6 Kernel driver i915 Mesa driver crocus (Gallium3D for Intel Gen 4–8) text/html 2026-05-25T13:57:20+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/list-of-quantum-computing-concepts?rev=1779717440&do=diff List of quantum computing concepts * Qubit * Born rule * Dirac notation * Global phase * $\mathbb{CP}^1$ * Hopf fibration * Bloch sphere * Pure state * Mixed state * $\lvert 0\rangle$ * $\lvert 1\rangle$ * $\lvert +\rangle$ * $\lvert -\rangle$ * $\lvert i\rangle$ * $\lvert -i\rangle$ * Two qubits * Bell state * Three qubits * W state * GHZ state * NOON state * Quantum register * Quantum gate * Multiqubit gates * I gate * X-gate * Y gate * Z gate * Rotation gates * … text/html 2026-05-25T13:38:32+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/writing-guide?rev=1779716312&do=diff Writing guide Writing guide (this article) is a guide to writing articles in this wiki. Every article should preferably start with a main section followed by a few paragraphs. The first paragraph should preferably start with the name of the article in bold (just as it did in this article) followed by a few sentences that further describe the concept.$\alpha,\beta,\gamma$$X$$$X = \begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix}$$ text/html 2026-05-25T13:16:45+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/qubit?rev=1779715005&do=diff Qubit Qubit is the quantum computing equivalent of a bit. A classical bit can be 0 or 1. There are no probabilities involved at all, but we can assign them anyway. If a bit is 1, then it's 1 with 100% probability and 0 with 0% probability. Conversely, if a bit is $\lvert 0\rangle$$\lvert 1\rangle$$\lvert 0\rangle$$\lvert 1\rangle$$\lvert\psi\rangle$$$\lvert\psi\rangle = a\lvert 0\rangle + b\lvert 1\rangle$$$a$$b$$\lvert 0\rangle$$a = \frac{\sqrt 2}{2} + i\frac{\sqrt 2}{2}$$\lvert 1\rangle$$b =… text/html 2026-05-25T13:08:44+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/past-disclaimer?rev=1779714524&do=diff Disclaimer This website is not an authoritative source. It is written by one person -- me. It's not meant to serve as documentation or a definitive guide to the technology I talk about. I write about topics that interest me and I explain them in the way I understand them text/html 2026-05-25T13:08:35+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/home?rev=1779714515&do=diff Home Hi, I'm Ivan! This website is my encyclopedia about various technical topics. The topics I cover on this wiki are mostly related to technology, but sometimes I also write about mathematics and physics. I'm an embedded software engineer. Therefore, most of the articles on this website are going to be written from that lens. For example, if I make an analogy, it's probably going to be related to embedded engineering in some way. I use text/html 2026-05-25T10:23:22+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/y-gate?rev=1779704602&do=diff Y gate Y gate (or Pauli-Y gate) is a single-qubit quantum gate represented by the second Pauli matrix. It combines the actions of the X gate (bit flip) and the Z gate (phase flip), and also introduces a factor of $i$. $$Y = \begin{pmatrix}0 & -i \\ i & 0\end{pmatrix}$$ The gate maps the computational basis states as $Y\lvert 0\rangle = i\lvert 1\rangle$$Y\lvert 1\rangle = -i\lvert 0\rangle$$\pi$$y$$Y$$Y^\dagger = Y$$Y^\dagger Y = I$$Y^2 = I$$Y = iXZ$$\lvert i\rangle$$+1$$\lvert -i\rangle$$-1$ text/html 2026-05-25T10:21:12+00:00 Ivan Janevski (iv@undisclosed.example.com) https://yanevskiv.com/x-gate?rev=1779704472&do=diff X-gate X-gate (or Pauli-X gate / Quantum NOT gate) is a 1-qubit quantum gate that serves as the quantum equivalent of logical NOT. It's represented by the following 2×2 matrix. $$ X = \begin{pmatrix}0 & 1\\ 1 & 0\end{pmatrix}$$ The gate flips $\lvert 0\rangle$ to $\lvert 1\rangle$, and $\lvert 1\rangle$ to $\lvert 0\rangle$, which is why it's called the quantum equivalent of NOT.$\pi$ text/html 2026-05-14T18:13:24+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=hpc_background.png&ns=0&rev=1778782404&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/hpc_background.png?w=500&amp;h=500&amp;tok=dcdeb8" alt="hpc_background.png" loading="lazy" width="500" height="500" /> text/html 2026-05-11T20:46:53+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=0%3Alogo.png&ns=0&rev=1778532413&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/0/logo.png?w=500&amp;h=500&amp;tok=108cd5" alt="logo.png" loading="lazy" width="500" height="500" /> text/html 2026-05-11T10:10:47+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=bloch_sphere.png&ns=0&rev=1778494247&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/bloch_sphere.png?w=500&amp;h=500&amp;tok=e5f6e8" alt="bloch_sphere.png" loading="lazy" width="500" height="500" /> text/html 2026-05-04T13:03:20+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=fdsa.txt&ns=0&rev=1777899800&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/lib/images/fileicons/svg/txt.svg" alt="fdsa.txt" loading="lazy" width="500" height="500" /> text/html 2026-04-21T20:46:53+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=chatgpt_image_apr_21_2026_10_43_37_pm.png&ns=0&rev=1776804413&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/chatgpt_image_apr_21_2026_10_43_37_pm.png?w=500&amp;h=500&amp;tok=ce88fb" alt="chatgpt_image_apr_21_2026_10_43_37_pm.png" loading="lazy" width="500" height="500" /> text/html 2026-02-06T01:57:21+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=git-folders.png&ns=0&rev=1770343041&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/git-folders.png?w=500&amp;h=500&amp;tok=d53880" alt="git-folders.png" loading="lazy" width="500" height="500" /> text/html 2026-02-02T20:12:08+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=logo.png&ns=0&rev=1770063128&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/logo.png?w=500&amp;h=500&amp;tok=0c2bc6" alt="logo.png" loading="lazy" width="500" height="500" /> text/html 2026-02-02T20:05:17+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=profile.png&ns=0&rev=1770062717&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/profile.png?w=500&amp;h=500&amp;tok=8becd4" alt="profile.png" loading="lazy" width="500" height="500" /> text/html 2026-02-02T20:04:09+00:00 yanevskiv (yanevskiv@undisclosed.example.com) https://yanevskiv.com/?image=0%3Aprofile.png&ns=0&rev=1770062649&tab_details=history&media_do=diff&do=media <img src="https://yanevskiv.com/_media/0/profile.png?w=500&amp;h=500&amp;tok=df59fc" alt="profile.png" loading="lazy" width="500" height="500" />