Effective Field

Physics, technology, and ideas — by Eren Erberk Erkul

Holographic Spectral Alignment

🥇 1st Place — METU Engineering Day 3MT, plus the full PHYS400 poster and long presentation.

May 20, 2026 · 1 min · Eren Erberk Erkul

What is a Horizon? WIS Experimental Projects

PDF presentation on horizon concepts and WIS experimental projects.

March 16, 2026 · 1 min · Eren Erberk Erkul

Nonlinear Optics Presentation – Interband Berry Phase

Presentation slides from the Nonlinear Optics course on the interband Berry phase.

January 20, 2026 · 1 min · Eren Erberk Erkul

Holographic Spectral Alignment — Draft

This page contains a draft manuscript and an assessment note provided as supporting material for my application to the Caltech PhD program in Physics. Private materials — please do not distribute or repost. The documents below are end-to-end encrypted. Enter the passphrase to decrypt and view them in your browser — the files are never served or stored in readable form. 🔒 Encrypted materials — enter passphrase to decrypt Decrypt ...

December 15, 2025 · 1 min · Eren Erberk Erkul

METU Talk — Einstein's Equations in Electromagnetic Media

Talk given at METU on Einstein’s field equations in the context of electromagnetic media.

December 3, 2025 · 1 min · Eren Erberk Erkul

ISTA Hosten Group Meeting Talk — Einstein's Equations in Electromagnetic Media

Talk at the ISTA Hosten Group Meeting, Wednesday September 10, 2025.

September 10, 2025 · 1 min · Eren Erberk Erkul

Classification of Different Analogies in Mathematical Physics

A framework for categorizing analogies between physical systems — from intuitive connections to full mathematical dualities.

July 30, 2025 · 1 min · Eren Erberk Erkul

TAPIR Caltech SXS Group Meeting Talk

Talk at the TAPIR / Caltech SXS Group Meeting on Einstein’s equations in electromagnetic media.

July 8, 2025 · 1 min · Eren Erberk Erkul

Gravitational Aquarium

The cosmos lives within everyday moments — observing an aquarium at METU and drawing parallels to gravitational physics.

May 10, 2025 · 1 min · Eren Erberk Erkul

Fluctuation-Dissipation Theorem

From Einstein’s 1905 Brownian motion to quantum vacuum fluctuations and the Lindblad equation.

March 2, 2025 · 2 min · Eren Erberk Erkul