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We calculate the quenching of interference of two beams moving in vacuum parallel to a thick plate with permittivity $\\epsilon(\\omega)=\\epsilon_{0}+i 4\\pi\\sigma/\\omega$. In case of an ideal conductor or dielectric $(|\\epsilon|=\\infty)$ the dephasing is suppressed when"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"quant-ph/0312184","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-12-22T15:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"9429c82e28274e89b8af39017ef94905da61b5090534b9b949c038e89b68f461","abstract_canon_sha256":"d86328d6952ef766d115d081e14059641175396e7b838f01bc38d79ff917847a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:05:03.722874Z","signature_b64":"obNviXUEsBM+f6MGyLc5IHJvdYixmDXpuKcbLI5xDZmQiJ8BFG71JTSOFokNMOJ5TgNBWHWuPuvz+b6vggliCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb127f461ce35363c1856f4b489b08b98c65be23e10ab717b15dd6e4155d68c0","last_reissued_at":"2026-05-18T01:05:03.722265Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:05:03.722265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Decoherence of electron beams by electromagnetic field fluctuations","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Yehoshua Levinson","submitted_at":"2003-12-22T15:31:00Z","abstract_excerpt":"Electromagnetic field fluctuations are responsible for the destruction of electron coherence (dephasing) in solids and in vacuum electron beam interference. The vacuum fluctuations are modified by conductors and dielectrics, as in the Casimir effect, and hence, bodies in the vicinity of the beams can influence the beam coherence. We calculate the quenching of interference of two beams moving in vacuum parallel to a thick plate with permittivity $\\epsilon(\\omega)=\\epsilon_{0}+i 4\\pi\\sigma/\\omega$. 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