Pasquale Marra

exploring symmetries, complex patterns, and nontrivial topology in condensed matter

[Pasquale Marra @pmarraphysics]

My paper "Metric-induced non-Hermitian physics" is now published in @SciPostPhys! I show how non-Hermitian skin effects and non-unitary time evolutions can emerge naturally from an effective spacetime curvature.
Read it here: https://t.co/7LqxseBwrR

#Physics #CondensedMatter

[Pasquale Marra @pmarraphysics]

Popular summary of my recent work, "Curved Geometry Forces Matter to the Edge", on Kudos! I show how non-Hermitian skin effects and non-unitary time evolutions emerge naturally from an effective spacetime curvature. Read it here: https://t.co/gtjxFXqmcg

[Pasquale Marra @pmarraphysics]

Popular summary on Kudos

https://t.co/gtjxFXqmcg

[Pasquale Marra @pmarraphysics]

Published on @PTEP_Official:
Exact solutions describing zero modes in nonhermitian topological systems at smooth domain walls

https://t.co/sM7i4CCwRB
@pmarraphysics

[Pasquale Marra @pmarraphysics]

New #preprint @quantph @condmat
Controlling energy spectra and skin effect via boundary conditions in non-Hermitian 1D lattices
@RahulCondmat @pmarraphysics

https://t.co/naYjZGOYG0

[Pasquale Marra @pmarraphysics]

New #preprint: hidden localization transition where wavefunctions are localized with respect to an arbitrary combination of position and momentum. At the transition, this model describes a massless Dirac fermion in a curved spacetime.

https://t.co/g3SEKyO5hO

[Pasquale Marra @pmarraphysics]

In this recently published paper on PTEP, I show the equivalence of spacetime curvature and magnetic (gauge) fields under unitary transformations on a lattice. #physics #ptep

https://t.co/c9Syzb1Y4f

[Progress of Theoretical and Experimental Physics @PTEP_Official]

Pasquale Marra
Gauge fields induced by curved spacetime
https://t.co/Upu5ouPYhn
#PTEP

[Pasquale Marra @pmarraphysics]

Magnetic fields and gravity look the same under rotations in phase space on the lattice. Published today on #PTEP

https://t.co/c9Syzb2vTN

[Pasquale Marra @pmarraphysics]

Today on arXiv: Topologically nontrivial multicritical points. If a plane of the parameter space only hosts nontrivial phases, localized edge modes occur at the intersections between the critical lines separating these phases. #condmat
https://t.co/7SZtdC32YB

[Pasquale Marra @pmarraphysics]

In our recent preprint, we extend the analytical solutions describing topological zero modes localized at smooth phase boundaries to the nonhermitian case.

https://t.co/tIEOFVcqbY

[Pasquale Marra @pmarraphysics]

Published on #PTEP → exact solutions for zero modes of a modified Dirac equation decaying exponentially, or faster, or slower than exponential, for different (hermitian and nonhermitian) potential shapes.

https://t.co/uM1kRg3eGb

https://t.co/MBMuG2T55I

[Pasquale Marra @pmarraphysics]

New paper! Uncovering the link between spacetime metrics & nonhermitian physics! Contractions/expansions of spacetime correspond to gain/loss nonhermitian processes and nonunitary dynamics ⚛️
https://t.co/tl3qQIdqB0
#nonhermitian #quantumgravity #Quantum #arxiv #physics

[Pasquale Marra @pmarraphysics]

New paper! We derive exact equations for zero-energy modes with exponential, Gaussian, or polynomial decay in topological insulators and superconductors in hermitian and nonhermitian regimes
https://t.co/MBMuG2TCVg
#TopologicalPhysics #Quantum #arxiv #physics #majoranamodes

[Pasquale Marra @pmarraphysics]

Popular summary here:
"Cracking the code of topological boundaries: Exact solutions for zero modes"

https://t.co/93pqHXHZ4f

[Pasquale Marra @pmarraphysics]

Our recent work on exact analytical solutions of topological zero modes at smooth boundaries published on PTEP
#physics #hep #condensedmatter

https://t.co/ZIk6lfdF7E

[Pasquale Marra @pmarraphysics]

Popular summary here:
Cracking the code of topological boundaries: Exact solutions for zero modes
https://t.co/93pqHXHZ4f

[Pasquale Marra @pmarraphysics]

Our recent work on exact analytical solutions of topological zero modes at smooth boundaries published on PTEP
#physics #hep #condensedmatter

https://t.co/ZIk6lfdF7E

[Progress of Theoretical and Experimental Physics @PTEP_Official]

Pasquale Marra and Angela Nigro
Topological zero modes and bounded modes at smooth domain walls: Exact solutions and dualities
https://t.co/xQNdiZNnEQ
#PTEP

[Pasquale Marra @pmarraphysics]

Magnetic fields (gauge) and gravitational fields (metrics) are very distinct entities. Yet, surprisingly, they are equivalent under a "rotation" combining position and momentum
x,p → x+p,x-p
Details here
https://t.co/iQ7wLjB1db
#physics #quantum #gravity

[Pasquale Marra @pmarraphysics]

Exact solutions for topological zero modes at smooth and exponentially-confined boundaries. This generalizes the exact solutions of Dirac equations with domain walls, i.e., Jackiw-Rebbi solitons.

https://t.co/M6FesrLf1i

https://t.co/M8f1qRqWlE

[Pasquale Marra @pmarraphysics]

Majorana zero modes induced by inhomogeneous superconductivity https://t.co/pszKdy8eqg #