Laser Beam through Calcite crystal = Photon Entanglement?

fizixfan · Oct 18, 2016

If I shine a laser beam through a calcite crystal, the beam is split in two, as shown below. Are the photons in the split beams in an entangled state?

DSC_1475 Red laser through calcite crystal.jpg

cosmik debris · Oct 18, 2016

If that type of crystal performs a down conversion then some of the pairs of photons produced will be entangled but not many, like 1 pair in 10^12 maybe. I'll let an expert comment.

mister mishka · Dec 6, 2016

I am also no expert, but maybe birefringence is something to read up on.. https://en.wikipedia.org/wiki/Birefringence

Laser Beam through Calcite crystal = Photon Entanglement?

High School Interesting paper on QM in Scientific American

Undergrad ##r-##independent angular momentum in quantum mechanics

High School Seemingly odd quantum tunneling

Graduate Exact symmetry, quantum states, and symmetric dynamics

Undergrad What empirical observation supports the axiom of continuous spacetime?

Graduate Avalanche photon detectors

Undergrad A Dataset & Signal Analysis Interpretation of Quantum Mechanics

High School Two/three photon absorption chemical substance producing photons for electricity generation

Insights Revisiting the Velocity-Time Function

Insights Remote Operated Gate Control System

Insights AI Enriched Problem Solving

Insights Thinking Outside The Box Versus Knowing What’s In The Box

Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect

Laser Beam through Calcite crystal = Photon Entanglement?

Similar threads