We briefly review the ideas that have shaped modern optics and have led to various
applications of light ranging from spectroscopy to astrophysics, and street lights to quantum …

Construction of a fault-tolerant quantum computer remains a challenging problem due to
unavoidable noise and fragile quantum states. However, this goal can be achieved by …

Local implementation of non-local quantum gates is necessary in a distributed quantum
computer. Here, we demonstrate the non-local implementation of controlled-unitary quantum …

This paper demonstrates the use of entanglement resources in quantum speedup by
presenting an algorithm which is the generalization of an algorithm proposed by Goswami …

A novel scheme for quantum communication having substantial applications in practical life
is designed and analyzed. Specifically, we have proposed a hierarchical counterpart of the …

The quantum no-hiding theorem, first proposed by Braunstein and Pati (Phys Rev Lett 98:
080502, 2007), was verified experimentally by Samal et al.(Phys Rev Lett 186: 080401 …

We present a scheme of quantum repeater that uses entangled multimode coherent states
that are obtained by electro-optic modulation of symmetric and antisymmetric Schrödinger …

There are several quantum computing platforms available on cloud. In this paper, we have
compared the performance of five-qubit superconductivity-based four IBM quantum …

We present a linear optical protocol for teleporting and correcting both temporal and
frequency errors in two time–frequency qubit states. The first state is the frequency (or time …

Wang et al. first studied hierarchical quantum information splitting of an arbitrary single-qubit
state via the χ state as the entangled channel. There exists a hierarchy among the three …