Foundations of Quantum Theory  

General Issues > s.a. quantum mechanics / formulations; information; interpretations; quantum measurement; realism; sub-quantum theories.
* Idea: There are several big conceptual issues in quantum mechanics, related to each other, such as Does a quantum state represent reality or our knowledge of reality? Quantum mechanics has holistic aspects that we have a difficult time understanding.
* History: The intuitive, local realism view of physics was challenged by the EPR "paradox" (1935) about reality, locality and completeness, Bell's inequality (1964) about reality and locality, the Hardy-Jordan experiment (1993) tested by Torgerson et al [@ PLA(95), PLA(96)], GHZ states of N > 2 particles.
* Status: Quantum mechanics has passed all experimental tests so far, many more than it had originally been designed to pass, from the structure of matter to the dynamics of stars and the quantum Hall effect; The problems lie in the interpretational aspects.
@ Early papers: Einstein et al PR(31); Eddington 46 [and Durham PhD(05)qp/06].
@ Overviews, books: Mugur-Schächter 64; Redhead 87; Gibbins 88; d'Espagnat 89; Jauch 90; Wimmel 92; Sonego AFLB(92); Hawking ed-11; O'Reilly a1109 [outsider view]; Hájíček Ent(13)-a1212 [rev]; Jennings & Leifer CP(15)-a1501 [no classical reality]; Sivasundaram & Nielsen a1612 [survey]; Chiribella & Spekkens a1805.
@ General references: Ballentine et al PT(71); Groenewold PRP(74), PRP(83), PRP(83), PRP(85); Jasselette IJQC(80) [panel discussion]; Aspect et al PT(85)nov; Duch & Aerts PT(86)jun; Groenewold PRP(87) [bilocality]; d'Espagnat PRP(84), FP(87); Omnès PLA(87); Home & Whitaker PLA(88) [without collapse]; Bub BJPS(89); Redhead BJPS(89); Piron HPA(89); Borg Arkh(92)phy/06; Unruh PRA(94)ht/93; Sommers gq/94 [role of future]; Haag in(00); Mitra qp/05-ch; Kracklauer O&S(07)qp/06 [meaning of terms]; Appleby qp/06-proc; van Enk FP(07)-a0705 [toy model for quantum mechanics]; Grinbaum BJPS(07) [from interpretation to reconstruction]; Kupczynski AIP(06)-a0710; Fuchs AIP(07)-a0906; Ferrero et al a0804; Hardy & Spekkens PiC-a1003 [motivation]; Lyre FP(10)-a1005; Bernstein a1012; Goldstein & Zanghì a1101 [Bohmian perspective, and wave function of the universe]; Domazet PhD(09)-a0303; Torrieri a1107; Healey a1110 [and explanation]; Ottolenghi a1111; Valentini in(11)-a1408 [quantum interview]; Stenholm FP(12); Fröhlich & Schubnel a1203-proc; Lewis et al PRL(12) [distinct quantum states can be compatible with a single state of reality]; Schlosshauer et al SHPMP(13)-a1301 + news tr(13)jan, Sommers a1303, Norsen & Nelson a1306 [snapshots of current views]; Appleby a1305-conf [and non-Cartesian philosophy]; Hofmann PRA(14)-a1306 [law of quantum ergodicity proposal]; Briggs et al PRS(13)-a1307 [questions]; Laudisa EJPS(14)-a1307 [against no-go results]; Echenique-Robba a1308 [why do it]; Aerts & Sozzo LNCS(15)-a1405 [microphysical and structural appearances of the quantum]; Mohrhoff a1411-conf; Ghose a1412; Mohrhoff Cosm(16)-a1604; de la Torre a1605; Kastner et al a1709 + news sn(17)oct [ontological dualism of res extensa and res potentia]; Boughn a1801; Kupczynski a1804.
@ Pragmatist view: Healey BJPS(12); Sanz in(15)-a1508 [and Bohmian mechanics].
@ Paradoxes: Peres FP(84); Selleri 90; Aharonov & Rohrlich 05; Kryukov a0708; Rohrlich a0708-en [and errors]; Shkliarevsky a1012 [knowledge and reality].
@ Completeness: Page PLA(82); Kunstatter & Trainor PLA(84); Ford & Mantica AJP(92)dec; Benioff PRA(99)qp/98 [+ validity, consistency]; Marchildon FP(04)qp [incompleteness]; Magnus BJPS(04) [inconsistency of "bare theory"]; Garola qp/05 [and notions of truth]; Skrebnev a1106 [incompleteness, and microcanonical ensembles].
@ Quantum theory is fine as is: Englert EPJC(13)-a1308 [no measurement problem or other foundational matters to settle].
@ Related topics: Angelidis JMP(93) [local extension]; Tartaglia EJP(98)qp [instruction kits]; Bub SHPMP(00) [nature of quantum mechanics]; Lyre qp/03-in ["ur-theory"]; D'Hondt & Panangaden qp/05-proc [quantum knowledge]; Mugur-Schächter a0801 [infra quantum mechanics]; Paterek et al NJP(10) [and logical independence]; Brassard & Méthot FP(10) [inconsistency of quantum mechanics]; Perisic NQ(10)-a1005; Aerts ScSt(13)-a1110 [and the human cognitive realm]; Kauffman a1410; Montina MPLA(15)-a1412 [and quantum communication complexity]; Chiatti a1412 [Bohr model and quantum leap]; da Costa & de Ronde a1609 [biased metaphysical interpretation of the formalism?]; Gisin & Fröwis a1802-PTRS, Adesso et al a1806-PTRS [and applications].
> Related issues: see axioms; causality; Complementarity; Counterfactuals; Contextuality; Determinism; experiments; Free Will; locality; Ontology; photons; physical theories [towards a principle theory approach]; probabilities in quantum theory; quantum cosmology; Reality; semiclassical; Trajectories.

Individual Particle or System > s.a. interpretations [including ψ-Epistemic Theories and ψ-Ontic Theories]; mixed states.
@ General references: Hoyt AJP(68)apr; Hartle AJP(68)aug; Peres AJP(74)oct, van Heerden AJP(75)nov, Peres AJP(75)nov [state of single system?]; Barut FP(90); Aharonov & Vaidman JPA(91), PLA(93); Ballentine FP(92); Anandan FPL(93); Nussinov FP(98)qp/96; Hegerfeldt FdP(98)qp/97-conf; Komar in(99); Ax & Kochen qp/99; Zhu & Shan qp/00; Zeh in(04)qp/02; Gao IJQC(11)-a1001; Klein a1207 [no basis for individuality interpretation]; Wallden FP(13)-a1211 [and the co-event formulation]; Ghirardi & Romano JPCS(13)-a1302; Sorkin JPCS(13)-a1304; Zeh ZN-a1304; Szczepański a1510 [properties of quantum objects]; Weinbaum a1604 [from individuals to individuation]; Gao a1611-in.
@ Objectivity vs subjectivity: Garola FP(00); Carter qp/05-ch [micro-anthropic principle]; Harrigan & Spekkens FP(10)-a0706; Pradhan OJP-a1202.
@ And measurement: Aharonov et al PRA(93); Busch & Lahti JPA(96); D'Ariano & Yuen PRL(96); Raymer CP(97); Rempe pw(00)dec [experiments with single atoms]; Wechsler qp/04-wd [position, criticism of statistical interpretation]; Di Lorenzo qp/06 [proposed experiment]; Omnès conf-a1302 [waves of entanglement and the uniqueness of reality]; Ringbauer et al nPhys(15)-a1412.
@ Related topics: Paul AJP(85)apr [photon polarization example]; Audretsch et al PLA(97)qp [visualizing]; Kadin qp/06 [interpreted as analogous to magnetic domain]; Longpré & Kreinovich IJTP(08) [and quantum cosmology, algorithmic information theory]; Herbut SHPMP-a1307 [degree-of-presence].

General References > s.a. correlations; quantum mechanics.
@ I: d'Espagnat SA(79)nov; Shimony SA(88)jan; Brown et al PT(89)apr; Ball Nat(90)sep; Horgan SA(92)jul; Nadeau & Kafatos 00; Tegmark & Wheeler SA(01)feb-qp; Musser SA(04)aug [Einstein's view]; 't Hooft et al pw(05)dec [forum]; Rosenblum & Kuttner 06; Malin 12 [and Western philosophy].
@ II: Lamb PT(69)apr; Belinfante AJP(78)apr; Keller AJP(79)aug; Stedman AJP(85)dec; Mermin AJP(81)oct, AJP(90)aug, AJP(94)oct, AJP(98)sep; Jordan AJP(94)oct; Goldstein PT(98)apr; Bilodeau qp/98; Leggett pw(99)dec; Laloë AJP(01)jun-qp/02; Adenier AJP(08)feb; Bernstein a1008; Lindblad PS(11) [intro]; Kastner 15; Sassoli de Bianchi a1806.
@ Papers: Bunge AJP(56)apr; DeWitt PT(70)sep, PT(71)apr; Omnès AP(90), RMP(92); Costa de Beauregard FP(92); Rosu MR(97)gq/94; Goldstein in(96)qp [attitude of physicists]; Tegmark FdP(98)qp/97; Mohrhoff qp/00 [cookie-cutter paradigm]; Aerts in(99)qp/01; de Muynck qp/01-proc; Mohrhoff qp/01; Khrennikov & Summhammer qp/01 [math/experiment]; Cassinello & Gallego AJP(05)mar [world view]; Weinstein a0902 [path integrals and intuitive quantum mechanics]; Rau FP(10)-a0909 [measurement-based]; Ferrero et al a1107 [methodology of quantum physics]; Groisman a1107 [toy theory]; Rodriguez a1112 [classical, elementary approach]; Hofer AIP(12)-a1209; Mohrhoff FP(14)-a1404, QSMF(14)-a1404-fs; Inamori a1507 [the observed world]; Carroll & Singh a1801-FQXi [the simplest ontology]; Dieks a1801 [perspectivalism].
@ Books: Jammer 64; Blokhintsev 68; Pagels 82; Herbert 85; Davies & Brown ed-86; Bell 87; Redhead 87; Hughes 89; Peat 90; Cushing 94; Omnès 94; Isham 95; Bub 97; Auletta 00; Cook 02; de Muynck 02 [empiricist]; Laloë 12.
@ Books, I: Davies 80; Gribbin 84; Von Baeyer 92; Lindley 96; Greenstein & Zajonc 05.
@ Books, II: Bohm 80; d'Espagnat 83; Baggott 92; Squires 94; Wick 95; Baggott 04; Ghirardi 04; Allday 09; Mohrhoff 11.
@ Collections: Ballentine ed-88; Schommers ed-89; Miller ed-90; Garola & Rossi ed-95; Fuchs & Mermin qp/01; Khrennikov qp/03-proc; Elitzur et al ed-05.
@ Philosophical: Reichenbach 44; Cushing & McMullin ed-89; Butterfield BJPS(92); Schommers 95; Busch SC(01)qp-conf; Davies BJPS(05); Hartle JPA(07)qp/06-fs [quantum physics and human language]; Shkliarevsky a0809 [non-classical epistemology]; MacKinnon 12 [role of language]; > s.a. Epistemology; philosophy of science.
@ References: Ballentine AJP(87)sep [RL]; Cabello qp/00.

"It's a bad sign [...] that those physicists who are happy about quantum mechanics,
and see nothing wrong with it, don't agree with each other about what it means," — Steven Weinberg

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