{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VMCWZGXVY2CKCY6STD2NOXCJIR","short_pith_number":"pith:VMCWZGXV","canonical_record":{"source":{"id":"1601.00143","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-01-02T06:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"7d0eadad48bf4ab64cbffd6b59a90f9478de93c4bec1d3f0f97265d1deb4485b","abstract_canon_sha256":"644a62a1328dfbfb2bdc2e2cc2e6f4d3cca168ecf38d63379b54033bdd4b35af"},"schema_version":"1.0"},"canonical_sha256":"ab056c9af5c684a163d298f4d75c49446656eb58a96499cb41ba8336b5d8340e","source":{"kind":"arxiv","id":"1601.00143","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00143","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00143v2","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00143","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"VMCWZGXVY2CK","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VMCWZGXVY2CKCY6S","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VMCWZGXV","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VMCWZGXVY2CKCY6STD2NOXCJIR","target":"record","payload":{"canonical_record":{"source":{"id":"1601.00143","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-01-02T06:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"7d0eadad48bf4ab64cbffd6b59a90f9478de93c4bec1d3f0f97265d1deb4485b","abstract_canon_sha256":"644a62a1328dfbfb2bdc2e2cc2e6f4d3cca168ecf38d63379b54033bdd4b35af"},"schema_version":"1.0"},"canonical_sha256":"ab056c9af5c684a163d298f4d75c49446656eb58a96499cb41ba8336b5d8340e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:06.284262Z","signature_b64":"2RVe46bVds6OTXYhjH7w7/OQSPCMrEHaYNWVNlezJlksRIhRh0of89dvFuK4iMBHjaibyIryTV6m1Wkf7BkXAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab056c9af5c684a163d298f4d75c49446656eb58a96499cb41ba8336b5d8340e","last_reissued_at":"2026-05-18T01:20:06.283701Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:06.283701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.00143","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aAajnLaOe7rHDR6BG/haDYosqhEgkWpqLbPqnyhHumKwDiK5XQkN6KI65vQFtfqc152p1QzzdmAd0joSc1DCDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:48:49.145146Z"},"content_sha256":"1c588f41fb7fe3339975c39ba83048cc6d1cfc713a7e5f1420ec8f383ffcffb4","schema_version":"1.0","event_id":"sha256:1c588f41fb7fe3339975c39ba83048cc6d1cfc713a7e5f1420ec8f383ffcffb4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VMCWZGXVY2CKCY6STD2NOXCJIR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"One-Mode Wigner Quasi-probability Distribution Function for Entangled Coherent States Generated by Beam Splitter and Cavity QED","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"G. Najarbashi, S. Mirzaei","submitted_at":"2016-01-02T06:47:58Z","abstract_excerpt":"In this paper, we use the displacement operator together with parity operation to construct the superposition of two coherent states. By transmitting this superposition from 50-50 beam splitter the two-mode qubit like ECS is generated. Moreover, we introduce a controllable method for producing qutrit like ECS using atom-field interaction in cavity QED and beam splitter. We will show that the distances of peaks of Wigner functions for reduced density matrices of two-mode ECS's are entanglement sensitive and can be a witness for entanglement. To confirm the results we use concurrence measure to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00143","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xF/AE+HFp/CpXf9E1t9Rv245J+D3fRdCtqDJ88ciHtSbiXJDQUlvPUoj9XJV1ZAX8+BQH9ssz2HNPp00yjtLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:48:49.145543Z"},"content_sha256":"c9c09fe9184c6730f8b89f6e270be5a0064b780dc28da735ec07aa469329ac24","schema_version":"1.0","event_id":"sha256:c9c09fe9184c6730f8b89f6e270be5a0064b780dc28da735ec07aa469329ac24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/bundle.json","state_url":"https://pith.science/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T19:48:49Z","links":{"resolver":"https://pith.science/pith/VMCWZGXVY2CKCY6STD2NOXCJIR","bundle":"https://pith.science/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/bundle.json","state":"https://pith.science/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VMCWZGXVY2CKCY6STD2NOXCJIR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VMCWZGXVY2CKCY6STD2NOXCJIR","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"644a62a1328dfbfb2bdc2e2cc2e6f4d3cca168ecf38d63379b54033bdd4b35af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-01-02T06:47:58Z","title_canon_sha256":"7d0eadad48bf4ab64cbffd6b59a90f9478de93c4bec1d3f0f97265d1deb4485b"},"schema_version":"1.0","source":{"id":"1601.00143","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00143","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00143v2","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00143","created_at":"2026-05-18T01:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"VMCWZGXVY2CK","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VMCWZGXVY2CKCY6S","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VMCWZGXV","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:c9c09fe9184c6730f8b89f6e270be5a0064b780dc28da735ec07aa469329ac24","target":"graph","created_at":"2026-05-18T01:20:06Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In this paper, we use the displacement operator together with parity operation to construct the superposition of two coherent states. By transmitting this superposition from 50-50 beam splitter the two-mode qubit like ECS is generated. Moreover, we introduce a controllable method for producing qutrit like ECS using atom-field interaction in cavity QED and beam splitter. We will show that the distances of peaks of Wigner functions for reduced density matrices of two-mode ECS's are entanglement sensitive and can be a witness for entanglement. To confirm the results we use concurrence measure to ","authors_text":"G. Najarbashi, S. Mirzaei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-01-02T06:47:58Z","title":"One-Mode Wigner Quasi-probability Distribution Function for Entangled Coherent States Generated by Beam Splitter and Cavity QED"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00143","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1c588f41fb7fe3339975c39ba83048cc6d1cfc713a7e5f1420ec8f383ffcffb4","target":"record","created_at":"2026-05-18T01:20:06Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"644a62a1328dfbfb2bdc2e2cc2e6f4d3cca168ecf38d63379b54033bdd4b35af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-01-02T06:47:58Z","title_canon_sha256":"7d0eadad48bf4ab64cbffd6b59a90f9478de93c4bec1d3f0f97265d1deb4485b"},"schema_version":"1.0","source":{"id":"1601.00143","kind":"arxiv","version":2}},"canonical_sha256":"ab056c9af5c684a163d298f4d75c49446656eb58a96499cb41ba8336b5d8340e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab056c9af5c684a163d298f4d75c49446656eb58a96499cb41ba8336b5d8340e","first_computed_at":"2026-05-18T01:20:06.283701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:06.283701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2RVe46bVds6OTXYhjH7w7/OQSPCMrEHaYNWVNlezJlksRIhRh0of89dvFuK4iMBHjaibyIryTV6m1Wkf7BkXAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:06.284262Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.00143","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c588f41fb7fe3339975c39ba83048cc6d1cfc713a7e5f1420ec8f383ffcffb4","sha256:c9c09fe9184c6730f8b89f6e270be5a0064b780dc28da735ec07aa469329ac24"],"state_sha256":"c440b70a25822e954640d530c88a92e5788da11be71068b689514aca5bde2ff4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eeC+4kdbzEdDkvAcfNh3Ub3s1LlrUQ/ydDE4QH/grCYHZnZJDMV5mQ5Fwf2T4G+UFrLVbRnOMXECo35+5kNoBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:48:49.147536Z","bundle_sha256":"18af076fdc0898b3e8c68f6c8a7d5a97db2b60d7bc6f0195edc2fe20919472d7"}}