83 citations · 186 across the 6 of their papers we have counts for
6 papers
The quantum switch is uniquely defined by its action on unitary operations
Qingxiuxiong Dong, Marco Túlio Quintino, Akihito Soeda +1
The quantum switch is a quantum process that creates a coherent control between different unitary operations, which is often described as a quantum process which transforms a pair…
Success-or-Draw: A Strategy Allowing Repeat-Until-Success in Quantum Computation
Qingxiuxiong Dong, Marco Túlio Quintino, Akihito Soeda +1
Repeat-until-success strategy is a standard method to obtain success with a probability which grows exponentially in the number of iterations. However, since quantum systems are di…
Controlled quantum operations and combs, and their applications to universal controllization of divisible unitary operations
Qingxiuxiong Dong, Shojun Nakayama, Akihito Soeda +1
Unitary operations are a fundamental component of quantum algorithms, but they seem to be far more useful if given with a "quantum control" as a controlled unitary operation. Howev…
Probabilistic exact universal quantum circuits for transforming unitary operations
Marco Túlio Quintino, Qingxiuxiong Dong, Atsushi Shimbo +2
This paper addresses the problem of designing universal quantum circuits to transform uses of a -dimensional unitary input-operation into a unitary output-operation in a pro…
Reversing Unknown Quantum Transformations: Universal Quantum Circuit for Inverting General Unitary Operations
Marco Túlio Quintino, Qingxiuxiong Dong, Atsushi Shimbo +2
Given a quantum gate implementing a -dimensional unitary operation , without any specific description but , and permitted to use times, we present a universal probab…
Implementing positive maps with multiple copies of an input state
Qingxiuxiong Dong, Marco Túlio Quintino, Akihito Soeda +1
Valid transformations between quantum states are necessarily described by completely positive maps, instead of just positive maps. Positive but not completely positive maps such as…