BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Quantum Walks Gravity Simulation
DTSTART;VALUE=DATE-TIME:20160630T100000Z
DTEND;VALUE=DATE-TIME:20160630T110000Z
DTSTAMP;VALUE=DATE-TIME:20260617T184754Z
UID:indico-event-2762@indico.ific.uv.es
DESCRIPTION:As we know\, spacetime is not flat at the cosmological scale. 
 In order to describe spacetime\, in General Relativity theory (GR)\, we ne
 ed a continuous and differentiable manifold and a formal way to account fo
 r the continuous distortion of the metrics. The main point is that changin
 g coordinate systems should not affect physics laws (General Covariance). 
 However at the Planck length\, matter is not continuous and obeys Quantum 
 Theory (QT). Although one century has passed\, finding an intrinsically di
 screte counterpart of GR is still an open question. In fact\, discretized 
 GR does not turn out in just a mere finite difference scheme of the old fo
 rmula.\n\nI recently showed that one way to describe a discrete curved spa
 cetime is by using Quantum Walks. From a physical perspective a QW describ
 es situations where a quantum particle is taking steps on a discrete grid 
 conditioned on its internal state (say\, spin states). The particle dynami
 cally explores a large Hilbert space associated with the positions of the 
 lattice and allows thus to simulate a wide range of transport phenomena.\n
 \nIt is surprising that this unitary and local dynamics\, defined on a rig
 id space-time lattice coincides in the continuous limit with the dynamical
  behavior of a quantum spinning-particle spreading on a curved spacetime. 
 This could really turn out to be a powerful quantum numerical method to di
 scretize GR.\n\nhttps://indico.ific.uv.es/event/2762/
LOCATION:Campus Burjassot 4-4-4426 - Seminari Física Teòrica
URL:https://indico.ific.uv.es/event/2762/
END:VEVENT
END:VCALENDAR