28 citations · 139 across the 11 of their papers we have counts for
11 papers
Is spacetime quantum?
Damián Pitalúa-García
Although the standard viewpoint in theoretical physics is that the unification of quantum theory and general relativity requires the quantization of gravity and spacetime, there is…
Spacetime symmetries and the qubit Bloch ball: a physical derivation of finite dimensional quantum theory and the number of spatial dimensions
Damián Pitalúa-García
Quantum theory and relativity are the pillar theories on which our understanding of physics is based. Poincaré invariance is a fundamental physical principle stating that the exper…
Practical quantum tokens without quantum memories and experimental tests
Adrian Kent, David Lowndes, Damián Pitalúa-García +1
Unforgeable quantum money tokens were the first invention of quantum information science, but remain technologically challenging as they require quantum memories and/or long distan…
Multiphoton and side-channel attacks in mistrustful quantum cryptography
Mathieu Bozzio, Adrien Cavaillès, Eleni Diamanti +2
Mistrustful cryptography includes important tasks like bit commitment, oblivious transfer, coin flipping, secure computations, position authentication, digital signatures and secur…
Flexible quantum tokens in spacetime
Adrian Kent, Damián Pitalúa-García
S-money [Proc. R. Soc. A 475, 20190170 (2019)] schemes define virtual tokens designed for networks with relativistic or other trusted signalling constraints. The tokens allow near-…
One-out-of- spacetime-constrained oblivious transfer
Damián Pitalúa-García
In one-out-of- spacetime-constrained oblivious transfer (SCOT), Alice and Bob agree on pairwise spacelike separated output spacetime regions in an…
Practical and unconditionally secure spacetime-constrained oblivious transfer
Damián Pitalúa-García, Iordanis Kerenidis
Spacetime-constrained oblivious transfer (SCOT) extends the fundamental primitive of oblivious transfer to Minkowski space. SCOT and location oblivious data transfer (LODT) are the…
Spacetime-constrained oblivious transfer
Damián Pitalúa-García
In 1-out-of-2 oblivious transfer (OT), Alice inputs numbers x_0, x_1, Bob inputs a bit b and outputs x_b. Secure OT requires that Alice and Bob learn nothing about b and x_{\bar{b}…
Hyperdense coding and superadditivity of classical capacities in hypersphere theories
Serge Massar, Stefano Pironio, Damián Pitalúa-García
In quantum superdense coding, two parties previously sharing entanglement can communicate a two bit message by sending a single qubit. We study this feature in the broader framewor…
Bloch sphere colourings and Bell inequalities
Adrian Kent, Damián Pitalúa-García
We consider here the predictions of quantum theory and local hidden variables for the correlations obtained by measuring a pair of qubits by projections defined by randomly chosen…
Deduction of an upper bound on the success probability of port-based teleportation from the no-cloning theorem and the no-signaling principle
Damián Pitalúa-García
In port-based teleportation, Alice teleports an unknown quantum state to one of N ports at Bob's site. Alice applies a measurement and sends Bob the outcome k. Bob only needs to se…