Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Feder, David L."'
All known resource states for measurement-based quantum teleportation in correlation space possess symmetry protected topological order, but is this a sufficient or even necessary condition? This work considers two families of one-dimensional qubit s
Externí odkaz:
http://arxiv.org/abs/2310.10561
Quasiparticle poisoning errors in Majorana-based qubits are not suppressed by the underlying topological properties, which undermines the usefulness of this proposed platform. This work tackles the issue via quasiparticle measurement. Error-detecting
Externí odkaz:
http://arxiv.org/abs/2307.08896
In contrast to the determinant, no algorithm is known for the exact determination of the permanent of a square matrix that runs in time polynomial in its dimension. Consequently, non interacting fermions are classically efficiently simulatable while
Externí odkaz:
http://arxiv.org/abs/2307.04681
Publikováno v:
Phys. Rev. A 105, 042418 (2022)
Deciding if a given family of quantum states is topologically ordered is an important but nontrivial problem in condensed matter physics and quantum information theory. We derive necessary and sufficient conditions for a family of graph states to be
Externí odkaz:
http://arxiv.org/abs/2112.02502
Autor:
Liao, Pengcheng, Feder, David L.
Publikováno v:
Phys. Rev. A 104, 012432 (2021)
Given their potential for fault-tolerant operations, topological quantum states are currently the focus of intense activity. Of particular interest are topological quantum error correction codes, such as the surface and planar stabilizer codes that a
Externí odkaz:
http://arxiv.org/abs/2103.12268
Autor:
Alase, Abhijeet, Feder, David L.
Publikováno v:
Phys. Rev. A 103, 053305 (2021)
Topological phases with broken time-reversal symmetry and Chern number |C|>=2 are of fundamental interest, but it remains unclear how to engineer the desired topological Hamiltonian within the paradigm of spin-orbit-coupled particles hopping only bet
Externí odkaz:
http://arxiv.org/abs/2102.04468
Publikováno v:
Phys. Rev. Lett. 119, 197401 (2017)
We show that the evolution of two-component particles governed by a two-dimensional spin-orbit lattice Hamiltonian can reveal transitions between topological phases. A kink in the mean width of the particle distribution signals the closing of the ban
Externí odkaz:
http://arxiv.org/abs/1707.01839
Autor:
Feder, David L.
Inhomogeneous superconductors with an order parameter of dx²-y² (d-wave) symmetry are investigated within the Ginzburg-Landau (GL) and Bogoliubov-de Gennes (BdG) formalisms. The inhomogeneities considered in detail are external magnetic fields, twi
Externí odkaz:
http://hdl.handle.net/11375/8109
Publikováno v:
Phys. Rev. A 93, 012343 (2016)
The ability to transfer quantum information from one location to another with high fidelity is of central importance to quantum information science. Unfortunately for the simplest system of a uniform chain (a spin chain or a particle in a one-dimensi
Externí odkaz:
http://arxiv.org/abs/1511.00038
Autor:
Mivehvar, Farokh, Feder, David L.
Publikováno v:
Phys. Rev. A 92, 023611 (2015)
The coupled dynamics of the atom and photon fields in optical ring cavities with two counter-propagating modes give rise to both spin-orbit interactions as well as long-ranged interactions between atoms of a many-body system. At zero temperature, the
Externí odkaz:
http://arxiv.org/abs/1505.02189