Dr Fabio Costa
Honorary Senior Research Fellow
School of Mathematics and Physics
Parnell Building (07), Room 307A
Journal Articles
MacLaurin, Colin, Costa, Fabio and Ralph, Timothy C. (2024). Falling into the past: geodesics in a time travel metric. Universe, 10 (2) 95, 1-14. doi: 10.3390/universe10020095
Dębski, Kacper, Zych, Magdalena, Costa, Fabio and Dragan, Andrzej (2023). Indefinite temporal order without gravity. Physical Review A, 108 (6) 062204. doi: 10.1103/physreva.108.062204
Capela, Matheus, Verma, Harshit, Costa, Fabio and Céleri, Lucas C. (2023). Reassessing thermodynamic advantage from indefinite causal order. Physical Review A, 107 (6) 062208. doi: 10.1103/physreva.107.062208
Parker, Lachlan and Costa, Fabio (2022). Background independence and quantum causal structure. Quantum, 6 865, 1-15. doi: 10.22331/q-2022-11-28-865
Tobar, Germain, Haine, Simon, Costa, Fabio and Zych, Magdalena (2022). Mass-energy equivalence in gravitationally bound quantum states of the neutron. Physical Review A, 106 (5) 052801, 1-11. doi: 10.1103/physreva.106.052801
Bishop, Lachlan G, Ralph, Timothy C and Costa, Fabio (2022). Billiard-ball paradox for a quantum wave packet. Classical and Quantum Gravity, 39 (17) 175007, 1-27. doi: 10.1088/1361-6382/ac8198
Costa, Fabio (2022). A no-go theorem for superpositions of causal orders. Quantum, 6. doi: 10.22331/Q-2022-03-01-663
Goswami, K., Giarmatzi, C., Monterola, C., Shrapnel, S., Romero, J. and Costa, F. (2021). Experimental characterization of a non-Markovian quantum process. Physical Review A, 104 (2) 022432. doi: 10.1103/physreva.104.022432
Verma, Harshit, Zych, Magdalena and Costa, Fabio (2021). Effect of environment on the interferometry of clocks. Quantum, 5 525, 1-21. doi: 10.22331/q-2021-08-17-525
Bishop, Lachlan G., Costa, Fabio and Ralph, Timothy C. (2021). Time-traveling billiard-ball clocks: A quantum model. Physical Review A, 103 (4) 042223, 1-13. doi: 10.1103/physreva.103.042223
Giarmatzi, Christina and Costa, Fabio (2021). Witnessing quantum memory in non-Markovian processes. Quantum, 5 440. doi: 10.22331/q-2021-04-26-440
Goswami, Kaumudibikash and Costa, Fabio (2021). Classical communication through quantum causal structures. Physical Review A, 103 (4) 042606. doi: 10.1103/physreva.103.042606
Tobar, Germain and Costa, Fabio (2020). Reversible dynamics with closed time-like curves and freedom of choice. Classical and Quantum Gravity, 37 (20) aba4bc, 1-18. doi: 10.1088/1361-6382/aba4bc
Jia, Ding and Costa, Fabio (2019). Causal order as a resource for quantum communication. Physical Review A, 100 (5) 052319. doi: 10.1103/PhysRevA.100.052319
Baumeler, Ämin, Costa, Fabio, Ralph, Timothy C., Wolf, Stefan and Zych, Magdalena Anna (2019). Reversible time travel with freedom of choice. Classical and Quantum Gravity, 36 (22) 224002, 224002. doi: 10.1088/1361-6382/ab4973
Zych, Magdalena, Costa, Fabio, Pikovski, Igor and Brukner, Časlav (2019). Bell’s theorem for temporal order. Nature Communications, 10 (1) 3772, 3772. doi: 10.1038/s41467-019-11579-x
Shrapnel, Sally, Costa, Fabio and Milburn, Gerard (2018). Quantum Markovianity as a supervised learning task. International Journal of Quantum Information, 16 (8) 1840010, 1840010. doi: 10.1142/s0219749918400105
Goswami, K., Giarmatzi, C., Kewming, M., Costa, F., Branciard, C., Romero, J. and White, A. G. (2018). Indefinite causal order in a quantum switch. Physical Review Letters, 121 (9) 090503, 090503. doi: 10.1103/physrevlett.121.090503
Ringbauer, Martin, Costa, Fabio, Goggin, Michael E., White, Andrew G. and Fedrizzi, Alessandro (2018). Multi-time quantum correlations with no spatial analog. npj Quantum Information, 4 (1) 37. doi: 10.1038/s41534-018-0086-y
Costa, Fabio, Ringbauer, Martin, Goggin, Michael E., White, Andrew G. and Fedrizzi, Alessandro (2018). Unifying framework for spatial and temporal quantum correlations. Physical Review A, 98 (1) 012328. doi: 10.1103/PhysRevA.98.012328
Shrapnel, Sally and Costa, Fabio (2018). Causation does not explain contextuality. Quantum, 2 63, 63. doi: 10.22331/q-2018-05-18-63
Shrapnel, Sally, Costa, Fabio and Milburn, Gerard (2018). Updating the Born rule. New Journal of Physics, 20 (5) 053010, 053010. doi: 10.1088/1367-2630/aabe12
Giarmatzi, Christina and Costa, Fabio (2018). A quantum causal discovery algorithm. Npj Quantum Information, 4 (1) 17. doi: 10.1038/s41534-018-0062-6
Abbott, Alastair A., Wechs, Julian, Costa, Fabio and Branciard, Cyril (2017). Genuinely multipartite noncausality. Quantum, 1 39, 39. doi: 10.22331/q-2017-12-14-39
Pikovski, Igor, Zych, Magdalena, Costa, Fabio and Brukner, Časlav (2017). Time dilation in quantum systems and decoherence. New Journal of Physics, 19 (2) 025011, 025011. doi: 10.1088/1367-2630/aa5d92
Abbott, Alastair A., Giarmatzi, Christina, Costa, Fabio and Branciard, Cyril (2016). Multipartite causal correlations: polytopes and inequalities. Physical Review A, 94 (3) 032131, 032131-1-032131-12. doi: 10.1103/PhysRevA.94.032131
Ringbauer, Martin, Giarmatzi, Christina, Chaves, Rafael, Costa, Fabio, White, Andrew G. and Fedrizzi, Alessandro (2016). Experimental test of nonlocal causality. Science Advances, 2 (8) e1600162, e1600162. doi: 10.1126/sciadv.1600162
Costa, Fabio and Shrapnel, Sally (2016). Quantum causal modelling. New Journal of Physics, 18 (6) 063032, 063032. doi: 10.1088/1367-2630/18/6/063032
Pikovski, Igor, Zych, Magdalena, Costa, Fabio and Brukner, Caslav (2016). Reply to 'Questioning universal decoherence due to gravitational time dilation'. Nature Physics, 12 (1), 2-3. doi: 10.1038/nphys3650
Branciard, Cyril Branciard, Araujo, Mateus, Feix, Adrien, Costa, Fabio and Brukner, Caslav (2015). The simplest causal inequalities and their violation. New Journal of Physics, 18 (1) 013008, 013008. doi: 10.1088/1367-2630/18/1/013008
Araujo, Mateus, Branciard, Cyril, Costa, Fabio, Feix, Adrien, Giarmatzi, Christina and Brukner, Caslav (2015). Witnessing causal nonseparability. New Journal of Physics, 17 (10) 102001, 102001. doi: 10.1088/1367-2630/17/10/102001
Procopio, Lorenzo M., Moqanaki, Amir, Araujo, Mateus, Costa, Fabio, Calafell, Irati A., Dowd, Emma G., Hamel, Dendy R., Rozema, Lee A., Brukner, Caslav and Walther, Philip (2015). Experimental superposition of orders of quantum gates. Nature Communications, 6 (7913) 7913, 1-6. doi: 10.1038/ncomms8913
Pikovski, Igor, Zych, Magdalena, Costa, Fabio and Brukner, Caslav (2015). Universal decoherence due to gravitational time dilation. Nature Physics, 11 (8), 668-672. doi: 10.1038/nphys3366
Araujo, Mateus, Costa, Fabio and Brukner, Caslav (2014). Computational advantage from quantum-controlled ordering of gates. Physical Review Letters, 113 (25) 250402, 250402-1-250402-5. doi: 10.1103/PhysRevLett.113.250402
Ibnouhsein, Issam, Costa, Fabio and Grinbaum, Alexei (2014). Renormalized entropy of entanglement in relativistic field theory. Physical Review D, 90 (6) 065032. doi: 10.1103/PhysRevD.90.065032
Araujo, Mateus, Feix, Adrien, Costa, Fabio and Brukner, Caslav (2014). Quantum circuits cannot control unknown operations. New Journal of Physics, 16 (9) 093026, 093026. doi: 10.1088/1367-2630/16/9/093026
Zych, Magdalena, Costa, Fabio, Pikovski, Igor, Ralph, Timothy C. and Brukner, Caslav (2012). General relativistic effects in quantum interference of photons. Classical and Quantum Gravity, 29 (22) 224010, 224010-1-224010-18. doi: 10.1088/0264-9381/29/22/224010
Oreshkov, Ognyan, Costa, Fabio and Brukner, Caslav (2012). Quantum correlations with no causal order. Nature Communications, 3 (1) 1092. doi: 10.1038/ncomms2076
Zych, Magdalena, Costa, Fabio, Pikovski, Igor and Brukner, Caslav (2011). Quantum interferometric visibility as a witness of general relativistic proper time. Nature Communications, 2 (1) 505. doi: 10.1038/ncomms1498
Zych, Magdalena, Costa, Fabio, Kofler, Johannes and Brukner, Caslav (2010). Entanglement between smeared field operators in the Klein-Gordon vacuum. Physical Review D: covering particles, fields, gravitation, and cosmology, 81 (12) 125019. doi: 10.1103/PhysRevD.81.125019
Costa, Fabio, Harrigan, Nicholas, Rudolph, Terry and Brukner, Caslav (2009). Entanglement detection with bounded reference frames. New Journal of Physics, 11 (12) 123007, 123007. doi: 10.1088/1367-2630/11/12/123007
Costa, Fabio and Piazza, Federico (2009). Modeling a particle detector in field theory. New Journal of Physics, 11 (11) 113006, 113006. doi: 10.1088/1367-2630/11/11/113006
Cacciatori, Sergio L., Costa, Fabio and Piazza, Federico (2009). Renormalized thermal entropy in field theory. Physical Review D, 79 (2) 025006 doi: 10.1103/PhysRevD.79.025006
Conference Papers
Romero, Jacquiline, Goswami, Kaumudibikash, Giarmatzi, Christina, Costa, Fabio, Branciard, Cyril and White, Andrew G. (2018). Spatial modes for testing indefinite causal order. Complex Light and Optical Forces XII 2018, San Francisco, CA, United States, 30 January - 1 February 2018. Bellingham, WA, United States: SPIE. doi: 10.1117/12.2292732
Ringbauer, M., Giarmatzi, C., Chaves, R., Costa, F., White, A. G. and Fedrizzi, A. (2017). Experimental test of nonlocal causality. Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 2017. Piscataway, NJ, United States: IEEE. doi: 10.1109/CLEOE-EQEC.2017.8087316
Zych, M., Pikovski, I., Costa, F. and Brukner, C. (2016). General relativistic effects in quantum interference of "clocks". 8th Symposium on Frequency Standards and Metrology 2015, Potsdam, Germany, 12 - 16 October 2015. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1742-6596/723/1/012044
Procopio, L. M., Moqanaki, A., Araújo, M., Costa, F., Calafell, I. A., Dowd, E. G., Hamel, D. R., Rozema, L. A., Brukner, C. and Walther, P. (2014). Experimental superposition of orders of quantum gates. European Quantum Electronics Conference , Munich, Germany, 21–25 June 2015. OSA - The Optical Society.
Piazza, Federico and Costa, Fabio (2007). Volumes of space as subsystems. From Quantum to Emergent Gravity: Theory and Phenomenology, Trieste, Italy, 11-15 June 2007.