## Conferences and Invited Talks (4 conferences organised, 14 invited talks at Universities, 38 conference talks)

**(A) Organised Conferences (4)**

(4) Quantum Information in Scotland, Workshop of QUISCO, University of Edinburgh, Edinburgh, December 2014 (6 speakers, 20 participants) website

(3) Foundations of Quantum Mechanics and Quantum Gravity, Workshop in the framework of COST Action MP1006, Imperial College, London, April 2014 (15 speakers, 48 participants) website

(2) Foundations of Quantum Mechanics and Relativistic Spacetime, Workshop in the framework of COST Action MP1006, University of Athens, Greece, September 2012 (19 speakers, 47 participants) website

(1) Fundamental Problems in Quantum Physics, Workshop in the framework of COST Action MP1006, NCSR Demokritos, Athens, Greece, March 2012 (13 speakers, 35 participants) website

**(B) Invited Talks (14)**

(14) University of York, York Centre for Quantum Technologies, UK, November 2015

Talk: "Quantum Digital Signatures"

(13) University of Oxford, Department of Computer Science, UK, February 2015

Talk: "Non-locality and Quantum Non-contextuality"

(12) University of Cambridge, Department of Applied Mathematics and Theoretical Physics, UK, May 2014

Talk: "Non-locality and Quantum Non-contextuality"

(11) Heinrich Heine University Dusseldorf, Institute for Theoretical Physics, Germany, February 2014

Talk: "Quantum digital signatures without requiring quantum memory"

(10) University of California, San Diego (UCSD), Department of Mathematics, USA, May 2013

Talk: "The coevents formulation: Kochen Specker, consistent histories and Modus Ponens"

(9) University of California, San Diego (UCSD), Center for the Humanities, USA, May 2013

Talk: "Interpreting the path integral: The coevents formulation"

(8) Perimeter Institute for Theoretical Physics, Waterloo, Canada, January 2012.

Talk: “The co-event formulation of Quantum Theory”

(7) Academy of Athens, Research Center for Astronomy and Applied Mathematics, April 2009.

Talk: “Towards a Quantum Theory of Closed Systems: The co-events interpretation”

(6) National and Kapodistrian University of Athens, Department of Philosophy and History of Science, January 2011

Talk: “The causal sets approach: From emerging space from causal relations to quantum dynamics of spacetime”

(5) National and Kapodistrian University of Athens, Department of Physics, December 2007

Talk: “The problem of time in quantum gravity: The consistent histories approach”

(4) Perimeter Institute for Theoretical Physics, Waterloo, Canada, December 2007

Talk: “Timeless Questions in the Decoherent Histories Approach to Quantum Theory”

(3) École Normale Supérieure, Paris, France, Octobre 2007

Talk: “Quantum Gravity, Causal Sets and Cosmological Constant”

(2) National and Kapodistrian University of Athens, Department of Philosophy and History of Science, October 2007

Talk: “Consistent Histories: Quantum Theory without External Observers”

(1) Euler Mathematical Institute of the Russian Academy of Science, St. Petersburg, Russia, November 2004

Talk: “A review of the Decoherent Histories Approach to Quantum Theory”

**(C) Talks at Conferences (28)**

(28) CryptoForma Workshop, University of Strathclyde, Glasgow, UK, October 2015

Talk: "Verification of Quantum Computation"

(27) Workshop of the Networked Quantum Information (NQIT) Hub, Oxford, UK, July 2015

Talk: "Verification of Quantum Computation"

(26) Workshop on Physics and Information 2015, Paris, France, June 2015

Talk: "Quantum Measure Theory and Contextuality"

(25) Workshop on Quantum Measure Theory, Raman Research Institute, Bangalore, India, January 2015

Talk: "Zero covers in coevents and consistent histories"

(24) 21st Central European Workshop on Quantum Optics (CEWQO), Brussles, Belgium, June 2014

Talk: "Quantum digital signatures with quantum key distribution components"

(23) Is quantum theory exact?, Laboratori Nazionali di Frascati, Frascati, Italy, April 2014

Talk: "Quantum non-contextuality as a generalisation of quantum theory"

(22) Foundations of Quantum Mechanics and Quantum Gravity, Workshop in the framework of COST Action MP1006, Imperial College, London, April 2014

Talk: "Characterising quantum non-locality and histories"

(21) QUISCO meeting, University of St. Andrews, UK, December 2013

Talk: "Quantum Digital Signatures without quantum memory"

(20) The Quantum Landscape, Perimeter Institute, Waterloo, Canada, May 2013.

Talk: Towards a realist's interpretation of the path integral

(19) Second Panhellenic Conference in Philosophy of Science, Athens, Greece, November 2012.

Talk: Quantum measure theory and the meaning of probability in closed quantum systems

(18) Foundations of Quantum Mechanics and Relativistic Spacetime (organiser), Workshop in the framework of COST Action MP1006, Athens, Greece, September 2012.

Talk: Interpreting the quantum measure

(17) 6th International Workshop on Decoherence, Information, Complexity and Entropy-DICE, Castinglioncello, Italy, September 2012

Talk: The co-event formulation of quantum theory and the distinction of pure initial states

(16) NEB XV, 15th Conference: New Developments in Gravity, Chania, Greece, June 2012.

Talk: Causal Sets Dynamics: Progress and Outlook

(15) “Quantum Malta 2012”, Fundamental Problems in Physics, annual meeting of COST Action MP1006, University of Valletta, Malta, April 2012

Talk: Progress report of WG3: “Quantum Theory meets Relativity”

(14) “Fundamental Problems in Quantum Physics”, in the framework of COST Action MP1006 (Organiser), National Center for Scientific Research “Demokritos”, Athens, Greece, March 2012

Talks: (a) COST Action MP1006: Fundamental Problems in Quantum Physics

(b) An introduction to the co-event formulation of Quantum Theory

(13) Sixth Aegean Summer School: “Quantum Gravity and Quantum Cosmology”, Naxos, Greece, September 2011.

Talk: Canonical Quantum Cosmology, the Problem of Time and Decoherent Histories

(12) 5th International Workshop on Decoherence, Information, Complexity and Entropy-DICE, Castinglioncello, Italy, Septemeber 2010

Talk: Reasoning in Quantum Theory: Modus Ponens and the co-event interpretation

(11) NEB XIV, 14th Conference: New Developments in Gravity, Ioannina, Greece, June 2010.

Talk: The Problem of Time in Quantum Cosmology: A Decoherent Histories View

(10) Causets at DIAS II: “A workshop on recent progress in the Causal Set Approach to Quantum Gravity”, Dublin, December 2009.

Talk: Structure of Quantum Measure Theory

(9) First Mediterranean Conference on Classical and Quantum Gravity (MCCQG), Kolymbari, Crete, Greece, September 2009

Talk: Causal Sets: Quantum gravity from a fundamentally discrete spacetime

(8) 4th International Workshop on Decoherence, Information, Complexity and Entropy-DICE, Castinglioncello, Italy, September 2008

Talk: The emergence of Probabilities in Anhomomorphic Logic

(7) Second annual conference “GRAVTUM II”, Amorgos, Greece, September 2008.

Talk: Introducing Anhomomorphic Logic

(6) Annual Conference “Computability in Europe”, Athens, Greece, June 2008: “Logic and Theory of Algorithms”

Talk: Anhomomorphic Logic: The Logic of Quantum Realism.

(5) NEB XIII, 13th Conference: New Developments in Gravity, Thessaloniki, June 2008.

Talk: Emergent Continuum Spacetime form a Random, Discrete, Partial Order

(4) Fourth Aegean Summer School: “Black Holes”, Mytilene, Greece, September 2007.

Talk: Entropy Bounds in the Causal Sets Approach to Quantum Gravity

(3) 3rd International Workshop on Decoherence, Information, Complexity and Entropy-(DICE), Piombino, Italy, September 2006.

Talk: The Quantum Zeno Effect in the decoherent histories

(2) NEB XII, 12th Conference: New Developments in Gravity, Nafplio, Greece, June 2006.

Talk: Effective topology from spacetime tomography

(1) ENRAGE (European Network on Random Geometry) Workshop, Utrecht University, Netherlands, December 2005.

Talk: The decoherent histories analysis of timeless quantum theories