Indefinite Causal Structures and Quantum Causality Violations| Indefinite Causal Structures and Quantum Causality Violations |
Indefinite Causal Structures
> s.a. causality [as emergent], in quantum field theory;
axioms for quantum theory; regularization.
@ Reviews, introductions:
Brukner nPhys(14)apr,
PT(18)apr.
@ General references:
Hardy gq/05,
JPA(07)gq/06-in,
a0804-in ["causaloids"];
Oreshkov et al nComm(12)-a1105;
Ibnouhsein & Grinbaum PRA(15)-a1408,
Ibnouhsein PhD(14)-a1510 [and information-theoretic reconstruction];
Baumeler & Wolf NJP(16)-a1511;
Costa & Shrapnel NJP(16)-a1512 [framework for quantum causal modelling];
MacLean et al nComm(17)-a1606 [quantum-coherent mixtures];
Budroni et al PRA(16)-a1607 [distinguishability];
Araújo et al Quant(17)-a1611;
Kissinger & Uijlen a1701 [categorical semantics];
Silva et al NJP(17)-a1701 [and multi-time quantum states];
Ried et al PRA(17)-a1707 [transitions between causal relations];
Abbott et al Quant(17)-a1708 [genuinely multipartite non-causal correlations];
Castro-Ruiz et al PRX(18)-a1710 [dynamics];
Guérin & Brukner NJP(18)-a1805 [causal reference frames and locality];
Pienaar a1806
[quantum causal models and QBism; causal relations are observer-dependent];
Paunković & Vojinović a1905 [causal orders and quantum circuits];
Milz et al a2008 [ontological status];
Selby et al a2008 [dynamics of quantum causal structures];
Goswami & Romero a2009 [rev, and experiments];
Baumann et al a2105 [Page-Wootters formulation];
> s.a. Causal Model; correlations
[including out-of-time-order]; quantum computation.
@ Causal inequalities:
Ho et al a1804 [violation in Minkowski space];
Purves & Short a2101 [they cannot be violated].
@ Correlations:
Vilasini & Colbeck PRA(19)-a1907 [using Tsallis entropy].
@ Entanglement: Jia PRA(17)-a1707;
Zych et al a1708,
Rubino et al a1712 [entangled temporal orders].
@ Causally non-separable processes: Branciard SRep(16)-a1603;
Feix et al NJP(16)-a1604 [processes admitting a causal model].
@ Superpositions of causal orders:
Taddei et al a1903 [as an operational resource];
Pinzani & Gogioso a2003;
Costa a2008 [no-go result].
@ And quantum communication: Ebler et al PRL(18)-a1711 [communication networks];
Salek et al a1809;
Chiribella et al a1810 [perfect quantum communication];
Jia & Costa PRA(19)-a1901 [causal order as a resource].
@ Other phenomenology: Rubino et al SciAdv(17)-a1608
[experimentally implemented process without a definite causal order];
Perinotti in(17)-a1612 [and higher-order quantum computations];
Oreshkov Quant(19)-a1801 [local operations];
Goswami et al PRL(18)-a1803 [in a quantum switch];
news sn(18)aug [implementation];
Felce & Vedral a2003 [quantum refrigeration].
Causality Violations
> s.a. hidden variables; locality;
measurements [non-local]; quantum effects;
Retrocausation.
* Superluminal communication:
A number of proposals use quantum non-locality and the reduction process.
* Quantum mechanics with CTCs:
A widely accepted theory was proposed by Deutsch; An alternative one was
proposed by Lloyd et al.
@ General references: Cavalcanti PRX(18) [and non-locality, contextuality];
Shoshany a1907-ln.
@ Superluminal communication:
Michalski qp/99-wd;
Kuzmich et al PRL(01) [and quantum noise];
Yang qp/01;
Griffiths PRA(02)qp [no problem];
Ferrero et al PRA(04) [and non-linearity];
Malikotsinas qp/04 [and entanglement];
Ferrero et al IJQI(05)qp [and non-linear evolution];
Panković et al qp/05 [Griffiths' bug shadow];
Bassi & Ghirardi IJTP(08)-a0711 [not possible with wave-function collapse];
Ghirardi & Romano JPA(12),
a1305-wd
[why some of the most challenging recent proposals cannot work];
Ghirardi in(13)-a1305 [exhaustive review of proposals to send faster-than-light signals];
Sokolovski & Akhmatskaya AP(13)-a1309 [rev];
Bassi & Hejazi EJP(15)-a1411 [no-superluminal-signaling implies linear evolutions].
@ Superluminal tunneling: Aharonov et al PRL(98)qp [and unstable states];
Chiao AIP(99)qp/98;
Ghose & Samal PRE(01)qp/00 [and special relativity];
Muga et al PRA(02)qp [Hartman effect];
Sokolovski PRS(04)qp/03,
PRA(10);
> s.a. tunneling.
@ Other phenomenology: Bennett PRA(87),
PRA(87) [evidence in Compton scattering];
Valentini PRL(88);
Vaidman FP(91);
Gray qp/98-wd [time machine];
Pegg in(01)qp/05 [and self-consistency];
Greenberger & Svozil in(02)qp/05 [beam-splitter model, paradox resolution],
comment Wykes qp/05;
Svetlichny IJTP(11)-a0902 [effective time travel];
news pt(19)sep [inexpensive crystal as quantum time machine];
> s.a. experiments [superluminal].
@ And unitarity: Anderson PRD(95)gq/94;
Antonsen & Bormann IJTP(98)qp;
Everett PRD(04)gq [many-worlds];
Cornalba & Costa PRD(06).
@ Quantum mechanics with closed timelike curves: Hartle PRD(94)gq/93 [and unitarity];
Fewster & Wells PRD(95)ht/94;
Politzer PRD(94)gq;
Rosenberg PRD(98)ht/97;
Brun et al PRL(09)-a0811 [state distinguishability, cryptography];
DeJonghe et al PRD(10)-a0908 [discontinuous evolution];
Lloyd et al PRL(11)-a1005
+ news sn(10)jul [time travel through post-selected teleportation];
Wallman & Bartlett FP(12)-a1005;
Lloyd et al PRD(11)-a1007;
Lee a1101 [finite state model];
Gedik a1201;
Allen PRA(14)-a1401;
Dunlap a1510 [metaphysics of Deutsch's approach];
Pinzani et al a1902 [categorical framework].
@ And experiments: Ringbauer et al nComm(14)-a1501
+ news pw(15)feb [experimental simulation with photons];
Cocciaro et al JPCS(17)-a1701 [entanglement over kms].
> Related topics: see bell's theorem;
phenomenology of entanglement [delayed-choice entanglement swapping];
quantum computation; quantum correlations;
types of particles [fake particles and microcausality violations];
wave-function collapse.
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