To install the latest official release, you can use Julia's internal package manager. Simply start the Julia interpreter, press the
] key and type
pkg> add QuantumOptics
The source code is available on GitHub at https://github.com/qojulia/QuantumOptics.jl (Note: this version may be unstable). You can also use Julia's package manager to checkout this version.
pkg> develop QuantumOptics
Alternatively, you can use git to clone the repository.
>> git clone https://github.com/qojulia/QuantumOptics.jl.git