82 citations · 241 across the 9 of their papers we have counts for
9 papers
A formally exact master equation for open quantum systems
Li Yu, Eric J. Heller
We present a succinct and intuitive derivation of a formally exact master equation for general open quantum systems, without the use of an "inverse" map which was invoked in previo…
Quantum preprocessing for information-theoretic security in two-party computation
Li Yu
In classical two-party computation, a trusted initializer who prepares certain initial correlations, known as one-time tables, can help make the inputs of both parties information-…
Limitations on information theoretically secure quantum homomorphic encryption
Li Yu, Carlos A. Perez-Delgado, Joseph F. Fitzsimons
Homomorphic encryption is a form of encryption which allows computation to be carried out on the encrypted data without the need for decryption. The success of quantum approaches t…
Fast controlled unitary protocols using group or quasigroup structures
Li Yu
A nonlocal bipartite unitary gate can sometimes be implemented using prior entanglement and only one round of classical communication in which the two parties send messages to each…
Fast protocols for local implementation of bipartite nonlocal unitaries
Li Yu, Robert B. Griffiths, Scott M. Cohen
In certain cases the communication time required to deterministically implement a nonlocal bipartite unitary using prior entanglement and LOCC (local operations and classical commu…
Relative entropy derivation of the uncertainty principle with quantum side information
Patrick J. Coles, Li Yu, Michael Zwolak
We give a simple proof of the uncertainty principle with quantum side information, as in [Berta et al. Nature Physics 6, 659 (2010)], invoking the monotonicity of the relative entr…
Information theoretic treatment of tripartite systems and quantum channels
Patrick J. Coles, Li Yu, Vlad Gheorghiu +1
A Holevo measure is used to discuss how much information about a given POVM on system is present in another system , and how this influences the presence or absence of infor…
Local cloning of entangled states
Vlad Gheorghiu, Li Yu, Scott M. Cohen
We investigate the conditions under which a set $\SC$ of pure bipartite quantum states on a system can be locally cloned deterministically by separable operations, when…
Efficient implementation of bipartite nonlocal unitary gates using prior entanglement and classical communication
Li Yu, Robert B. Griffiths, Scott M. Cohen
Any bipartite nonlocal unitary operation can be carried out by teleporting a quantum state from one party to the other, performing the unitary gate locally, and teleporting a state…