Quantum teleportation with identical particles
arXiv:1502.05814 · doi:10.1103/PhysRevA.91.032316
Abstract
We study teleportation with identical massive particles. Indistinguishability imposes that the relevant degrees of freedom to be teleported are not particles, but rather addressable orthogonal modes. We discuss the performances of teleportation under the constraint of conservation of the total number of particles. The latter inevitably decreases the teleportation fidelity. Moreover, even though a phase reference, given by the coupling to a reservoir, circumverts the constraint, it does not restore perfect deterministic teleportation. The latter is only achievable with some special resource entangled states and when the number of particles tends to infinity. Interestingly, some of such states are the many-particle atomic coherent states and the ground state of cold atoms loaded into a double well potential, which are routinely prepared in experiments.
23 pages, 8 figures
References in corpus (24)
- Many-Body Physics with Ultracold Gases
- The Quantum Internet
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Theory of ultracold Fermi gases
- Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
- Nonlinear atom interferometer surpasses classical precision limit
- Reference frames, superselection rules, and quantum information
- Squeezing and entanglement in a Bose-Einstein condensate
- General criterion for the entanglement of two indistinguishable particles
- Novel schemes for measurement-based quantum computation
- Experimental demonstration of single-site addressability in a two-dimensional optical lattice
- Maximally multipartite entangled states
- Entanglement in fermion systems and quantum metrology
- Squeezing Inequalities and Entanglement for Identical Particles
- Macroscopic quantum information processing using spin coherent states
- Bipartite entanglement in systems of identical particles: the partial transposition criterion
- Probability density function characterization of multipartite entanglement
- Entanglement of Identical Particles
- Entanglement dynamics of electron-electron scattering in low-dimensional semiconductor systems
- Entanglement robustness and geometry in systems of identical particles
- Bose-Hubbard model for universal quantum walk-based computation
- Carrier-carrier entanglement and transport resonances in semiconductor quantum dots
- On Teleportation in a System of Identical Particles
- How to Distinguish Identical Particles. the General Case