Abstract
Quantum state embezzlement is the transformation using only local operations, where and are multipartite quantum states. Exact embezzlement is an impossible task since it implies the increase of entanglement without communication. Surprisingly, van Dam and Hayden [Phys. Rev. A 67, 060302 (2003)] find a universal embezzling family of states that enables embezzlement in the bipartite setting with arbitrary precision as the dimension of increases. Furthermore, the family is independent of the state to be embezzled. We study embezzlement in the bipartite setting. We present various requirements and consequences, and infinitely many universal embezzling families inequivalent to that proposed by van Dam and Hayden. We include numerical studies of up to 33-qubit large local systems.
- Received 15 July 2014
DOI:https://doi.org/10.1103/PhysRevA.90.042331
©2014 American Physical Society