Quantum computers are still in their early stages, and the software landscape is rapidly evolving.However, several software platforms and languages are emerging to support quantum computing research and development.

Here are some notable ones:

 Qiskit: Developed by IBM, Qiskit is an open-source quantum computing software development framework. It provides tools for working with quantum circuits, simulating quantum algorithms, and running experiments on real IBM quantum devices through the cloud.

Cirq: Developed by Google, Cirq is an open-source quantum computing framework that focuses on near-term algorithms and hardware. It allows researchers to write, simulate, and run quantum circuits on Google's quantum processors.

 Microsoft Quantum Development Kit: Microsoft offers a comprehensive development kit for quantum computing. It includes Q#, a quantum-focused programming language, along with simulators and tools for quantum algorithm development.

Forest SDK (Rigetti): Rigetti Computing offers the Forest SDK, which includes tools for programming and simulating quantum circuits using Quil (Quantum Instruction Language). It also provides access to Rigetti's quantum processors via the cloud.

ProjectQ: ProjectQ is an open-source software framework for quantum computing that provides high-level abstractions for quantum programming. It supports simulation of quantum algorithms on classical computers and can interface with quantum hardware.

Quipper: Quipper is a functional programming language for quantum computing developed by researchers at Microsoft Research and the University of Oxford. It is designed to express quantum algorithms in a high-level, scalable manner.

PennyLane: PennyLane is an open-source software library for quantum machine learning, quantum computing, and quantum optimization. It integrates with popular machine learning libraries like TensorFlow and PyTorch, allowing users to train quantum circuits as part of larger machine learning workflows.

These are just a few examples, and the landscape is continually evolving with new tools, languages, and platforms emerging as quantum computing technology progresses. Additionally, many universities and research institutions are developing their own software for quantum algorithm research and experimentation.