{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:THZMAEHDH2F67QEBSCJ5XLSEO6","short_pith_number":"pith:THZMAEHD","canonical_record":{"source":{"id":"1805.05190","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-05-14T14:22:54Z","cross_cats_sorted":["cond-mat.str-el","quant-ph"],"title_canon_sha256":"633df811650f38a663eb444924bdb31d24ef396c769f32240877aad374abb693","abstract_canon_sha256":"85ef204efb6c2e1a2ce899bb1090c4d476793357987fccc59377cca038873c18"},"schema_version":"1.0"},"canonical_sha256":"99f2c010e33e8befc0819093dbae4477b82c7cc5939cb0a196c2ed79f7ea1fdb","source":{"kind":"arxiv","id":"1805.05190","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05190","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05190v2","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05190","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"pith_short_12","alias_value":"THZMAEHDH2F6","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"THZMAEHDH2F67QEB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"THZMAEHD","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:THZMAEHDH2F67QEBSCJ5XLSEO6","target":"record","payload":{"canonical_record":{"source":{"id":"1805.05190","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-05-14T14:22:54Z","cross_cats_sorted":["cond-mat.str-el","quant-ph"],"title_canon_sha256":"633df811650f38a663eb444924bdb31d24ef396c769f32240877aad374abb693","abstract_canon_sha256":"85ef204efb6c2e1a2ce899bb1090c4d476793357987fccc59377cca038873c18"},"schema_version":"1.0"},"canonical_sha256":"99f2c010e33e8befc0819093dbae4477b82c7cc5939cb0a196c2ed79f7ea1fdb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:44.793512Z","signature_b64":"b3RzkOW5j78jmjvaYff1nwpldszrmwCrEa6G/Un1E0QXEvMTSj5nAorEU2XwJ0I2tDy5klc3V/ID0i3gElROCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99f2c010e33e8befc0819093dbae4477b82c7cc5939cb0a196c2ed79f7ea1fdb","last_reissued_at":"2026-05-18T00:04:44.792796Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:44.792796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.05190","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":"2026-05-18T00:04:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lZiCnAPL3O2d96BTtMTPxuldYUH6vq7dpsG5hrjrxyKHxs7ug3ye+b3AmN0ozX9CrWVCXPpKRd6DNj4ZUSGtAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:01:37.304625Z"},"content_sha256":"caafa34065d82ed167cbe6713b7cbcfe4130e390a5784243ea017c678f9193bd","schema_version":"1.0","event_id":"sha256:caafa34065d82ed167cbe6713b7cbcfe4130e390a5784243ea017c678f9193bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:THZMAEHDH2F67QEBSCJ5XLSEO6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","quant-ph"],"primary_cat":"hep-lat","authors_text":"E. Demler, J. I. Cirac, M. C. Ba\\~nuls, P. Sala, S. K\\\"uhn, T. Shi","submitted_at":"2018-05-14T14:22:54Z","abstract_excerpt":"We introduce a method to investigate the static and dynamic properties of both Abelian and non-Abelian lattice gauge models in 1+1 dimensions. Specifically, we identify a set of transformations that disentangle different degrees of freedom, and apply a simple Gaussian variational ansatz to the resulting Hamiltonian. To demonstrate the suitability of the method, we analyze both static and dynamic aspects of string breaking for the U(1) and SU(2) gauge models. We benchmark our results against tensor network simulations and observe excellent agreement, although the number of variational parameter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05190","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":"2026-05-18T00:04:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iooFwVmAjiywSlPg/cln5UZvp5u+4jf2Cv5vLCYJhQBjSKCQCLswksApJTMFnQ7Kc3ZhC8oM2k0eLQtnRzIHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:01:37.305355Z"},"content_sha256":"6a75240781eff198b7290181053e18465da0603e22d3dcae7f104747e402f8ab","schema_version":"1.0","event_id":"sha256:6a75240781eff198b7290181053e18465da0603e22d3dcae7f104747e402f8ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/bundle.json","state_url":"https://pith.science/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/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":"2026-05-31T03:01:37Z","links":{"resolver":"https://pith.science/pith/THZMAEHDH2F67QEBSCJ5XLSEO6","bundle":"https://pith.science/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/bundle.json","state":"https://pith.science/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/THZMAEHDH2F67QEBSCJ5XLSEO6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:THZMAEHDH2F67QEBSCJ5XLSEO6","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":"85ef204efb6c2e1a2ce899bb1090c4d476793357987fccc59377cca038873c18","cross_cats_sorted":["cond-mat.str-el","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-05-14T14:22:54Z","title_canon_sha256":"633df811650f38a663eb444924bdb31d24ef396c769f32240877aad374abb693"},"schema_version":"1.0","source":{"id":"1805.05190","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05190","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05190v2","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05190","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"pith_short_12","alias_value":"THZMAEHDH2F6","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"THZMAEHDH2F67QEB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"THZMAEHD","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:6a75240781eff198b7290181053e18465da0603e22d3dcae7f104747e402f8ab","target":"graph","created_at":"2026-05-18T00:04:44Z","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":"We introduce a method to investigate the static and dynamic properties of both Abelian and non-Abelian lattice gauge models in 1+1 dimensions. Specifically, we identify a set of transformations that disentangle different degrees of freedom, and apply a simple Gaussian variational ansatz to the resulting Hamiltonian. To demonstrate the suitability of the method, we analyze both static and dynamic aspects of string breaking for the U(1) and SU(2) gauge models. We benchmark our results against tensor network simulations and observe excellent agreement, although the number of variational parameter","authors_text":"E. Demler, J. I. Cirac, M. C. Ba\\~nuls, P. Sala, S. K\\\"uhn, T. Shi","cross_cats":["cond-mat.str-el","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-05-14T14:22:54Z","title":"Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05190","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:caafa34065d82ed167cbe6713b7cbcfe4130e390a5784243ea017c678f9193bd","target":"record","created_at":"2026-05-18T00:04:44Z","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":"85ef204efb6c2e1a2ce899bb1090c4d476793357987fccc59377cca038873c18","cross_cats_sorted":["cond-mat.str-el","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-05-14T14:22:54Z","title_canon_sha256":"633df811650f38a663eb444924bdb31d24ef396c769f32240877aad374abb693"},"schema_version":"1.0","source":{"id":"1805.05190","kind":"arxiv","version":2}},"canonical_sha256":"99f2c010e33e8befc0819093dbae4477b82c7cc5939cb0a196c2ed79f7ea1fdb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99f2c010e33e8befc0819093dbae4477b82c7cc5939cb0a196c2ed79f7ea1fdb","first_computed_at":"2026-05-18T00:04:44.792796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:44.792796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b3RzkOW5j78jmjvaYff1nwpldszrmwCrEa6G/Un1E0QXEvMTSj5nAorEU2XwJ0I2tDy5klc3V/ID0i3gElROCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:44.793512Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.05190","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:caafa34065d82ed167cbe6713b7cbcfe4130e390a5784243ea017c678f9193bd","sha256:6a75240781eff198b7290181053e18465da0603e22d3dcae7f104747e402f8ab"],"state_sha256":"afbd1fe5c4a548e94ef4c6d8478775629e8ab0f575ccb8dfd6b0891ecb154f3f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BZ3eotow8LZ1tWpeEOnyA72ybbf+pJQj8EW92BcFELOQGyeJDHY9r6SOIVKs9i/kYuOP5T/RRS8TpcbOYUTzAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T03:01:37.309287Z","bundle_sha256":"b2659ec23d7f673e30394e8dd04e2225aa3d7bcef6dc2d6596cf687cb2333c5e"}}