Pith Number

pith:XAXK7O4Z

pith:2026:XAXK7O4Z5H5PNBQEMBL2TLI2MH

not attested not anchored not stored refs pending

Clifft: Fast Exact Simulation of Near-Clifford Quantum Circuits

Bradley A. Chase, Farrokh Labib

Clifft factors quantum states into offline Clifford frame, online Pauli frame and dynamic active vector to make exact near-Clifford simulation scale with peak active dimension instead of qubit count or T-count.

arxiv:2604.27058 v2 · 2026-04-29 · quant-ph

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\usepackage{pith}
\pithnumber{XAXK7O4Z5H5PNBQEMBL2TLI2MH}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Clifft enables, to our knowledge, the first exact end-to-end simulation of magic state cultivation including the escape stage, over hundreds of billions of shots, while delivering up to orders-of-magnitude throughput gains over GPU-accelerated near-Clifford simulators on low-magic fault-tolerant benchmarks.

C2weakest assumption

That the peak active virtual dimension stays small enough in the targeted low-magic fault-tolerant circuits for the dynamic factoring into Clifford frame, Pauli frame, and active state vector to remain both exact and computationally tractable without hidden exponential blowup.

C3one line summary

Clifft achieves fast exact simulation of near-Clifford quantum circuits via dynamic active subspaces, delivering orders-of-magnitude speedups and the first full end-to-end simulations of magic state cultivation over hundreds of billions of shots.

Cited by

1 paper in Pith

Reducing Postselection Overhead in Magic-State Cultivation by In-Patch Multiplexing

Receipt and verification

First computed	2026-05-21T01:05:19.610527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b82eafbb99e9faf686046057a9ad1a61fd7b54d2e56d054aaec0d8f95f5c9693

Aliases

arxiv: 2604.27058 · arxiv_version: 2604.27058v2 · doi: 10.48550/arxiv.2604.27058 · pith_short_12: XAXK7O4Z5H5P · pith_short_16: XAXK7O4Z5H5PNBQE · pith_short_8: XAXK7O4Z

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XAXK7O4Z5H5PNBQEMBL2TLI2MH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b82eafbb99e9faf686046057a9ad1a61fd7b54d2e56d054aaec0d8f95f5c9693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "656bbd0c2578fab03750222214d36e861a5a7a68ab20df8a37a46c0294b569af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-04-29T18:00:10Z",
    "title_canon_sha256": "cd313f29a94ba4d759c19c1d773e997943087243c0e4c45b7161443623e5820d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.27058",
    "kind": "arxiv",
    "version": 2
  }
}