{
  "schema_version": 1,
  "kind": "ConceptView",
  "producer": "concept-view-1",
  "concept_id": "urn:uuid:44dec482-bb85-495a-9d9c-d029df6deeb5",
  "labels": {
    "zh-CN": "洛伦兹规范",
    "en": "Lorentz gauge"
  },
  "alternative_labels": [],
  "scope_note": "",
  "identity_status": "active",
  "identity_revision": "5bc1c8868a1e2632f4633355f0e5cd5efedef15364be76c89b38425159783553",
  "occurrences": [
    {
      "concept_id": "urn:uuid:44dec482-bb85-495a-9d9c-d029df6deeb5",
      "book_id": "szekeres",
      "edition_id": "source-snapshot-bc3404156f6e",
      "lang": "zh-CN",
      "route": "zh/chapter-09/04-electrodynamics",
      "anchor": "first-d9326ccde36fac5ec14f-zh",
      "chapter": "9",
      "section": "9.4",
      "offset": 14114,
      "range": [
        21210,
        21449
      ],
      "source_revision": "80f97950be40268118d5075fd518131bbc39cfa078c22922bd26aa9079613c7c",
      "source_category": "translation",
      "review_status": "unreviewed",
      "role": "occurrence",
      "role_basis": {
        "kind": "explicit-source-uuid-marker"
      },
      "label": "洛伦兹规范(Lorentz gauge)",
      "context": {
        "range": [
          21208,
          21940
        ],
        "quote": "称为<u class=\"concept-term\" data-concept-identity=\"urn:uuid:44dec482-bb85-495a-9d9c-d029df6deeb5\" data-concept-route=\"/concept-identities#concept-44dec482-bb85-495a-9d9c-d029df6deeb5\" id=\"first-d9326ccde36fac5ec14f-zh\">洛伦兹规范(Lorentz gauge)</u>。由于非齐次波动方程<a href=\"#equation-9-50\" class=\"cross-reference\" id=\"xref-04-electrodynamics-20\" data-reference=\"equation-9-50\">式 (9.50)</a>的解总是局部存在的，因此若愿意，我们总可以采用洛伦兹规范。然而应当指出，四维势$A _ { \\mu }$并不由洛伦兹规范条件<a href=\"#equation-9-51\" class=\"cross-reference\" id=\"xref-04-electrodynamics-21\" data-reference=\"equation-9-51\">式 (9.51)</a>唯一确定，因为仍然可以再加上一个梯度$\\boldsymbol { \\bar { \\psi } } _ { , \\mu }$，只要$\\hat { \\psi }$是波动方程$\\begin{array} { r } { \\bigsqcup \\bar { \\psi } = 0 } \\end{array}$的解。这被称为洛伦兹规范中可用的规范自由度。",
        "quote_sha256": "e10d4d093cf46d7d144d44a5f7233b47b56044a7dbd1ff6c5c7fab498485a5ba",
        "environment": null,
        "excerpt_omitted": false
      },
      "parallel_readings": [
        {
          "route": "en/chapter-09/04-electrodynamics",
          "lang": "en",
          "source_category": "original_transcription",
          "basis": "registered-book-edition-section-language-context; not-concept-equivalence"
        }
      ],
      "id": "occ-6dfeb15628d2e2b9303ba110"
    },
    {
      "concept_id": "urn:uuid:44dec482-bb85-495a-9d9c-d029df6deeb5",
      "book_id": "szekeres",
      "edition_id": "source-snapshot-bc3404156f6e",
      "lang": "en",
      "route": "en/chapter-09/04-electrodynamics",
      "anchor": "first-d9326ccde36fac5ec14f-en",
      "chapter": "9",
      "section": "9.4",
      "offset": 18131,
      "range": [
        24757,
        24989
      ],
      "source_revision": "25d9fc37d9c1d1b7fd9fe923e3876dd6a9d2749e6514472feb48ea0d4d9ca03b",
      "source_category": "original_transcription",
      "review_status": "unreviewed",
      "role": "occurrence",
      "role_basis": {
        "kind": "explicit-source-uuid-marker"
      },
      "label": "Lorentz gauge",
      "context": {
        "range": [
          24745,
          25795
        ],
        "quote": "is called a <u class=\"concept-term\" data-concept-identity=\"urn:uuid:44dec482-bb85-495a-9d9c-d029df6deeb5\" data-concept-route=\"/concept-identities#concept-44dec482-bb85-495a-9d9c-d029df6deeb5\" id=\"first-d9326ccde36fac5ec14f-en\">Lorentz gauge</u>. Since solutions of the inhomogeneous wave equation <a href=\"#equation-9-50\" class=\"cross-reference\" id=\"xref-04-electrodynamics-25\" data-reference=\"equation-9-50\">Eq. (9.50)</a> are always locally available, we may always adopt a Lorentz gauge if we wish. It should, however, be pointed out that the 4-potential $A _ { \\mu }$ is not uniquely determined by the Lorentz gauge condition <a href=\"#equation-9-51\" class=\"cross-reference\" id=\"xref-04-electrodynamics-26\" data-reference=\"equation-9-51\">Eq. (9.51)</a>, for it is still possible to add a further gradient $\\boldsymbol { \\bar { \\psi } } _ { , \\mu }$ provided $\\hat { \\psi }$ is a solution of the wave equation, $\\begin{array} { r } { \\bigsqcup \\bar { \\psi } = 0 } \\end{array}$ . This is said to be the available gauge freedom in the Lorentz gauge.",
        "quote_sha256": "d8c455eed7fa5017471b763184f75764ad6c4914caa651c8e82e354239ec9095",
        "environment": null,
        "excerpt_omitted": false
      },
      "parallel_readings": [
        {
          "route": "zh/chapter-09/04-electrodynamics",
          "lang": "zh-CN",
          "source_category": "translation",
          "basis": "registered-book-edition-section-language-context; not-concept-equivalence"
        }
      ],
      "id": "occ-645be91ec852f76480c54922"
    }
  ],
  "registered_positions": [
    {
      "route": "en/chapter-09/04-electrodynamics",
      "lang": "en",
      "section": "9.4",
      "signal": "term-mark",
      "label": "Lorentz gauge",
      "english": "Lorentz gauge",
      "offset": 16412
    },
    {
      "route": "zh/chapter-09/04-electrodynamics",
      "lang": "zh-CN",
      "section": "9.4",
      "signal": "term-mark",
      "label": "洛伦兹规范",
      "english": "Lorentz gauge",
      "offset": 12395
    }
  ],
  "statements": [],
  "resolved_references": [
    {
      "raw": "href=\"#equation-9-50\"",
      "href": "#equation-9-50",
      "range": [
        21462,
        21483
      ],
      "relation": "references",
      "target_route": "zh/chapter-09/04-electrodynamics",
      "target_anchor": "equation-9-50",
      "resolved": true,
      "reason": null,
      "source_revision": "80f97950be40268118d5075fd518131bbc39cfa078c22922bd26aa9079613c7c",
      "source_route": "zh/chapter-09/04-electrodynamics",
      "occurrence_id": "occ-6dfeb15628d2e2b9303ba110"
    },
    {
      "raw": "href=\"#equation-9-51\"",
      "href": "#equation-9-51",
      "range": [
        21648,
        21669
      ],
      "relation": "references",
      "target_route": "zh/chapter-09/04-electrodynamics",
      "target_anchor": "equation-9-51",
      "resolved": true,
      "reason": null,
      "source_revision": "80f97950be40268118d5075fd518131bbc39cfa078c22922bd26aa9079613c7c",
      "source_route": "zh/chapter-09/04-electrodynamics",
      "occurrence_id": "occ-6dfeb15628d2e2b9303ba110"
    },
    {
      "raw": "href=\"#equation-9-50\"",
      "href": "#equation-9-50",
      "range": [
        25045,
        25066
      ],
      "relation": "references",
      "target_route": "en/chapter-09/04-electrodynamics",
      "target_anchor": "equation-9-50",
      "resolved": true,
      "reason": null,
      "source_revision": "25d9fc37d9c1d1b7fd9fe923e3876dd6a9d2749e6514472feb48ea0d4d9ca03b",
      "source_route": "en/chapter-09/04-electrodynamics",
      "occurrence_id": "occ-645be91ec852f76480c54922"
    },
    {
      "raw": "href=\"#equation-9-51\"",
      "href": "#equation-9-51",
      "range": [
        25378,
        25399
      ],
      "relation": "references",
      "target_route": "en/chapter-09/04-electrodynamics",
      "target_anchor": "equation-9-51",
      "resolved": true,
      "reason": null,
      "source_revision": "25d9fc37d9c1d1b7fd9fe923e3876dd6a9d2749e6514472feb48ea0d4d9ca03b",
      "source_route": "en/chapter-09/04-electrodynamics",
      "occurrence_id": "occ-645be91ec852f76480c54922"
    }
  ],
  "reading_order": [
    "occ-6dfeb15628d2e2b9303ba110",
    "occ-645be91ec852f76480c54922"
  ],
  "recorded_dependencies": [],
  "reading_paths": [],
  "coverage": {
    "registered_positions": 2,
    "located_occurrences": 2,
    "whole_book_search_complete": false,
    "registered_positions_truncated": false,
    "independent_human_review_implied": false
  },
  "unresolved": [],
  "base_revision": "0762b5e17e2f7938cfcbd2e3728f7f3f01ae7b9b2559d8614d056a909604b9c6",
  "optional_enrichments": []
}