Pith Number

pith:4U2GPJFZ

pith:2026:4U2GPJFZ4WOCFPF7OVM4TSE6KF

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Different roles of quantum interference in a quantum dot photocell with two intermediate bands

Jing-Yi Chen, Shun-Cai Zhao, Xin Li

In a quantum dot photocell with two intermediate bands, interference from upper transitions raises conversion efficiency while interference from lower transitions lowers it by shortening carrier lifetimes.

arxiv:2605.12531 v1 · 2026-05-01 · physics.app-ph · cond-mat.mes-hall · quant-ph

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Claims

C1strongest claim

the photoelectric conversions increase with quantum coherence generated by the upper transition rates owing to their robust quantum interference. However, the conversion efficiency decrease with the quantum interference induced by two lower-transition rates due to the shortened population lifetime in the intermediate bands.

C2weakest assumption

The model assumes that the upper and lower transition rates can be varied independently while keeping all other decoherence and relaxation channels fixed, and that no additional loss mechanisms (such as phonon-assisted processes or interface traps) dominate the dynamics.

C3one line summary

In a quantum dot photocell with two intermediate bands, upper-transition quantum interference boosts conversion efficiency via robust coherence while lower-transition interference reduces it by shortening intermediate-band population lifetimes.

References

40 extracted · 40 resolved · 0 Pith anchors

[1] can be described by two divided Lindblad-type super-operators: Rij(k){ρ} = ∑ k=1, 2 ∑ i=a,b 2∑ j=1 γij(k) 2 [(nij(k) + 1)(2ˆσij(k) ˆρˆσ † ij(k) − ˆσ † ij(k) ˆσij(k) ˆρ − ˆρˆσ † ij(k) ˆσij(k)) + nij(k)

[2] an- alytically. Considering the cumbersome expression for the photo-to-charge eﬃciency η, we follow the numerical quantitative approach to analyze the inﬂuence of quan- tum interference related to the

[3] 0259ev, p1 = 0

[4] illustrates that the larger amounts of absorbed photons na2 can be achieved by a narrower gap, which is conﬁrmed by the enhanced eﬃciency η with the increasing na2 in Fig. 2. Secondly, photoelectric c

[5] The results demonstrate that γb2 loses its inﬂuence on the ▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫ ▫ ▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫ ▫ ▫ ▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫▫

Formal links

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Receipt and verification

First computed	2026-05-18T03:10:02.672477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53467a4b9e59c22bcbf7559c9c89e517681350b609c37c7cdc67c05cdb7f95a

Aliases

arxiv: 2605.12531 · arxiv_version: 2605.12531v1 · doi: 10.48550/arxiv.2605.12531 · pith_short_12: 4U2GPJFZ4WOC · pith_short_16: 4U2GPJFZ4WOCFPF7 · pith_short_8: 4U2GPJFZ

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4U2GPJFZ4WOCFPF7OVM4TSE6KF \
  | 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: e53467a4b9e59c22bcbf7559c9c89e517681350b609c37c7cdc67c05cdb7f95a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e2d3aefec6302024e308fecb60052e368e616786935acd3e93d6f17e89d81a2",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2026-05-01T12:09:14Z",
    "title_canon_sha256": "13d25dac9f93d0577af8db87a452f73c5354e96b6f7376f6d1d128928582b2b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12531",
    "kind": "arxiv",
    "version": 1
  }
}