Photonic Qudit Lineup Index
Eight gate-locked chip references on a single dimension ladder β not "different bases," but photonic qudit systems of dimension d in frequency-bin synthetic spectral space with OPC-assisted CV stabilization and GF(2m) algebraic control layers (SOLAR: structured 2Γ5 composite, β€ββ, not a field). GEMINI ships today; all siblings are roadmap, research, or speculative-framework unless labeled.
Eight chips on the Q-metric rail
Q < 0.2 Β· STAR-PHASER
Linear QFP + OPC hygiene. Teal band. GEMINI β TETRIS. GALAXY rehearses QUASAR fab while staying below Q = 0.2.
0.2 β€ Q < 1 Β· QUASAR hybrid
OPC + squeeze co-equal. NOVA opens the brand; SUPER hits crisis zone (~2.7Γ OPC margin).
Q β 1 Β± 0.1 Β· field balance
THETA: continuous OPC mesh, Ξf = 25 GHz. Speculative-framework
Q > 1 Β· field-dominant
LOTUS: split-band OPC, CV-primary. Research horizon β not product (NS-08).
Master chip index
| Chip | Brand | d | Algebra | Region | Q (target) | Ξf | Maturity | Page |
|---|---|---|---|---|---|---|---|---|
| GEMINI | STAR-PHASER | 2 | qubit / GF(2) dual-rail | I | βͺ 0.2 (~0.05) | β (path encoding) | Today Β· shipping | chip-gemini.html β |
| SOLAR | STAR-PHASER | 10 | 2Γ5 composite Β· β€ββ | I | βͺ 0.2 (~0.08) | 50 GHz | Roadmap | chip-solar.html β |
| GALAXY β | STAR-PHASER | 16 | GF(2β΄) | I | < 0.2 (~0.12) | 50 GHz | Today-feasible Β· QUASAR-transition prototype | chip-galaxy.html β |
| TETRIS | STAR-PHASER | 32 | GF(2β΅) | I | < 0.2 (~0.15) | 50 GHz | Today-feasible | chip-tetris.html β |
| β β β BOUNDARY Q = 0.2 Β· d = 64 brand transition TETRIS β NOVA β β β | ||||||||
| NOVA | QUASAR | 64 | GF(2βΆ) | II | 0.2β0.6 (~0.35) | 50 GHz | Near-term Β· WS12 Rung 3 | chip-nova.html β |
| SUPER | QUASAR | 128 | GF(2β·) | II | 0.4β0.8 (~0.50) | 35 GHz | Challenging Β· crisis zone | chip-super.html β |
| THETA | QUASAR | 256 | GF(2βΈ) | III | β 1 (~1.0) | 25 GHz | Experimental Β· field computing | chip-theta.html β |
| LOTUS | QUASAR | 512 | GF(2βΉ) | IV | > 1 (~1.4) | 20 GHz | Long-term Β· research horizon | chip-lotus.html β |
Canonical Ξf / comb span table (S84): GEMINI N/A Β· SOLAR 450 GHz Β· GALAXY 750 GHz Β· TETRIS 1.55 THz Β· NOVA 3.15 THz Β· SUPER 4.45 THz Β· THETA 6.38 THz Β· LOTUS 10.2 THz. See QUASAR Framework Β§7 for full scaling-law detail.
STAR-PHASER vs QUASAR
STAR-PHASER
Region I Β· Q < 0.2 Β· linear circuit + OPC hygieneGEMINI
βOnly v1 SKU. Dual-rail path qubit on an 8-mode Clements mesh with K=8/T=4 herald multiplexing and warm SPAD readout. The shipping anchor every ladder sibling inherits its SiβNβ backbone from.
d=2 Β· GF(2) Β· SU(2) Β· Q βͺ 0.2 (~0.05) Β· Ξf β (path encoding, no comb)
Memos S01βS10. Open GEMINI reference β
SOLAR
βSpectral decimal computing bridge β a structured 2Γ5 composite qudit running the DQFP/SDCLA decimal ISA. β€ββ ring arithmetic, not GF(10); algebraically a tensor-product space, not a field.
d=10 Β· 2Γ5 composite Β· β€ββ Β· Q βͺ 0.2 (~0.08) Β· Ξf 50 GHz Β· Bcomb 450 GHz
Memos S11βS20. Open SOLAR reference β
GALAXY
βFirst true finite-field architecture β GF(2β΄) with clean stabilizer compatibility. GALAXY is not QUASAR: it rehearses the L5 AlGaAs OPC mesh while staying safely in Region I. Passing the T-GALAXY gate authorizes the NOVA tape-out.
d=16 Β· GF(2β΄) Β· Q < 0.2 (~0.12) Β· Ξf 50 GHz Β· Bcomb 750 GHz
Memos S21βS30. Open GALAXY reference β
TETRIS
βScaling stress test before the d=64 boundary β 5 bits/photon, 992 phase pairs, and the first place the AWG routing ceiling bites (failure Law IV). The last chip where independent calibration and linear optics still dominate.
d=32 Β· GF(2β΅) Β· Q < 0.2 (~0.15) Β· Ξf 50 GHz Β· Bcomb 1.55 THz
Memos S31βS40. Open TETRIS reference β
QUASAR
Region II+ Β· Q β₯ 0.2 Β· hybrid & field-dominantNOVA
βThe brand opens at d=64. WS12 Rung 3 endpoint: 8Γ8 octet tiling, distributed OPC mesh, ~4Γ OPC margin. The sweet-spot candidate where ReedβSolomon coding becomes hardware-native.
d=64 Β· GF(2βΆ) Β· Q 0.2β0.6 (~0.35) Β· Ξf 50 GHz Β· Bcomb 3.15 THz
Memos S41βS50. Open NOVA reference β
SUPER
βWhere the linear paradigm cannot extrapolate: 16,384 phase pairs and ~2.7Γ OPC margin. OPC + squeezing become mandatory, not optional (NS-05) β the first true STAR-PHASER crisis.
d=128 Β· GF(2β·) Β· Q 0.4β0.8 (~0.50) Β· Ξf 35 GHz Β· Bcomb 4.45 THz
Memos S51βS60. Open SUPER reference β
THETA
βFirst plausible field-computing architecture. Continuous OPC mesh, global Οβ calibration, RS(255,223) hybrid classicalβquantum stack β the telecom-native byte field at Region III balance. Speculative-framework
d=256 Β· GF(2βΈ) Β· Q β 1 (~1.0) Β· Ξf 25 GHz Β· Bcomb 6.38 THz
Memos S61βS70. Open THETA reference β
LOTUS
βApex of the speculative framework: ~134M FWM pathways, split-band OPC, CV-primary stabilization β the system behaves as a continuous spectral manifold. Not a product (NS-08); research horizon only. Speculative-framework
d=512 Β· GF(2βΉ) Β· Q > 1 (~1.4) Β· Ξf 20 GHz Β· Bcomb 10.2 THz
Memos S71βS80. Open LOTUS reference β
Stability phase diagram
Brand transition (d=64)
TETRIS β NOVA. OPC margin ~4Γ at Ξf=50 GHz. STAR-PHASER ends; QUASAR opens.
Crisis (d=128)
SUPER at Qβ0.5, 16k phase pairs, ~2.7Γ OPC margin. Linear paradigm cannot extrapolate.
Resolution β apex
THETA continuous OPC at Qβ1. LOTUS Region IV split-band OPC, CV-primary at d=512.
Scaling-law backbone
| # | Failure mechanism | Scaling law | First stress / fail | Mitigation | Crosses (chips) |
|---|---|---|---|---|---|
| I | Comb span vs OPC / platform band | Bcomb = (dβ1)Β·Ξf β€ BOPC/mmargin | WARN SUPER (~2.7Γ); FAIL THETA @ Ξf=50 GHz | Reduce Ξf; split-band OPC (LOTUS) | SUPER, THETA, LOTUS |
| II | Phase relationships N(Nβ1) β independent calibration breaks ~GF(128) | Npair = dΒ·(dβ1) | ChiL stress TETRIS (992); SUPER crisis (16,384) | Octet factorization; continuous OPC + global Οβ | TETRIS, SUPER, THETA |
| III | Thermal crosstalk matrix RNΓN | Q > Qmax(d) β instability | Running GALAXY at NOVA pump duty β Q > 0.2 catastrophe | Duty caps per zone; SBS guard; per-chip Q setpoint | GALAXY rehearsal, SUPER+ |
| IV | OPC bandwidth segmentation at high d | ΞΞ»bin β λ²·Ξf/c Β· AWG resolution | TETRIS monolithic AWG WARN; vertical hatch dβ32β64 | 2Γ16 / 4Γ8 AWG trees; EO reconfigurable filters | TETRIS, NOVA |
| V | FWM pathway explosion β field regime at LOTUS | NFWM β dΒ²Β·(dβ1) ~ O(dΒ³) | NOVA ~262k WARN; LOTUS ~134M FAIL | Pump rotation; pathway nulling; reduce Ξ³Β·PΒ·L in Z1 | NOVA, SUPER, THETA, LOTUS |
QUASAR Framework
Full field-theoretic scaffold: Lagrangian Ξ¨ = (A, Ξ¦, Ξ), Q-metric region bands, 7-layer boundary fab stack, GALAXY prototype build card, expanded failure-law derivations, lineup maturity table, and mandatory never-state register (NS-01βNS-15).
GEMINI v1
Only chip designated Today / shipping. Dual-rail d=2, Region I, warm SPAD readout. All ladder siblings inherit the same SiβNβ backbone.
Base 2 β GF(256)
Four-rung progression from dual-rail through SOLAR decit to GALAXY GF(16) and NOVA GF(64) β WS12 synthesis endpoint.
WS13 memos S01βS85
Proposal-grade chip memos in 7-Research-Campaign/WS13-StarPhaser-Chip-Lineup/. Promotion requires CAMPAIGN-MANIFEST ΒΆ7 approval.