# International Journal of Theoretical Physics

International Journal of Theoretical Physics > 2019 > 58 > 1 > 308-322

International Journal of Theoretical Physics > 2019 > 58 > 1 > 150-156

International Journal of Theoretical Physics > 2019 > 58 > 1 > 114-120

International Journal of Theoretical Physics > 2019 > 58 > 1 > 83-91

International Journal of Theoretical Physics > 2019 > 58 > 1 > 157-166

**93**, 114024, 2016).

International Journal of Theoretical Physics > 2019 > 58 > 1 > 282-293

**10**, 1007 2017), proposed a protocol of deterministic tripartite controlled remote state preparation via a seven-qubit entangled state as quantum channel. In this paper, we present a novel scheme for tripartite controlled remote state preparation via a seven-qubit entangled state and three auxiliary particles. Our program is proposed by selecting a new set...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 247-254

*N*×

*M*matrix (

*N*rows and

*M*columns) but Alice does not know what matrix he has. The goal is of knowing the unknown matrix. How many queries does she need? In the classical case, she needs

*N*×

*M*queries. In the quantum case, she needs just a query. We propose an algorithm for determining the

*N*×

*M*matrix (

*N*rows and

*M*columns). First, we discuss an algorithm...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 184-200

International Journal of Theoretical Physics > 2019 > 58 > 1 > 209-220

*d*. The star-QAM with different ring radii is utilized...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 275-281

International Journal of Theoretical Physics > 2019 > 58 > 1 > 221-246

International Journal of Theoretical Physics > 2019 > 58 > 1 > 58-70

International Journal of Theoretical Physics > 2019 > 58 > 1 > 294-307

*q*-digamma function in mathematics. We employ the

*q*-digamma function to calculate the spatial and momentum distributions of ideal photons in a one-dimensional barrel cavity. The first main finding...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 136-142

*N*qubit-quantum computing which starts with the state | 0 , 0 , ... , 0 , 1 ⏞ N 〉 | 1 , 1 , ... , 1 ⏞ N 〉 ...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 92-102

International Journal of Theoretical Physics > 2019 > 58 > 1 > 71-82

*d*-level (qudits) quantum system to determine the types of the function

*f*(

*constant*or

*linear*) that had been used. A comparison of the efficiency between the quantum algorithm and the classical case have been given. In addition, the quantum key distribution protocol based on the algorithm is established to...

International Journal of Theoretical Physics > 2019 > 58 > 1 > 323-331

International Journal of Theoretical Physics > 2019 > 58 > 1 > 121-135

International Journal of Theoretical Physics > 2019 > 58 > 1 > 255-260

International Journal of Theoretical Physics > 2019 > 58 > 1 > 167-183

*R*

^{3}gate to perform the...