871 tt-2qubit-sim
871 : tt-2qubit-sim
- Author: Vic Al
- Description: Digital simulation (not real quantum computing) of two independent qubits and an entangled pair, with LFSR-based probabilistic collapse.
- GitHub repository
- Open in 3D viewer
- Open in Tiny Tapeout Explorer
- Clock: 100 Hz
How it works
tt-qubit-sim is a small digital "toy" simulation of qubit-like behaviour, built entirely from ordinary digital logic (registers, comparators and LFSRs) — it does not perform real quantum computation, it only imitates the classic textbook example of a qubit and entanglement using probabilistic digital logic.
How to test
The design was prototyped in Wokwi using a DIP switch (inputs), a push-button (reset), a clock generator, and four LEDs (outputs).
Driving the inputs as digital switches:
ui_in[0](in_q1): initial state of qubit 1 before reset.ui_in[1](in_q2): initial state of qubit 2 before reset.ui_in[2](apply_h): Hadamard gate.ui_in[3](measure): collapse/measure the qubit(s).
The outputs are:
uo_out[0]/uo_out[1](qubit 1 / qubit 2 results)uo_out[2]/uo_out[3](entangled pair results)
Three independent 8-bit maximal-length LFSRs (taps 8,6,5,4; period 255; seeded with fixed values) provide the pseudo-random numbers used for the probabilistic collapse — this is a simplified stand-in for real quantum randomness.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | in_q1 - estado inicial del Qubit 1 | q1_measured - resultado medido del Qubit 1 | |
| 1 | in_q2 - estado inicial del Qubit 2 | q2_measured - resultado medido del Qubit 2 | |
| 2 | apply_h - aplica puerta Hadamard | ent_measured[0] - resultado entrelazado Q1 | |
| 3 | measure - dispara medicion/colapso | ent_measured[1] - resultado entrelazado Q2 | |
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |