Universal Dynamical Control of Open Quantum Systems

Table 1

𝑁-scalability of entangled states decoherence for relaxation and dephasing scenarios, with and without cross decoherence.

	Relaxation		Dephasing
	No X-deco.	X-deco.	No X-deco.	X-deco.
GHZ	𝑁	𝑁	𝑁	𝑁^2
W-state	𝑁	3𝑁−2	4(𝑁−1)/𝑁	0
Bright state	𝑁	𝑁+𝑁^2/2	𝑁	0
Dark state	𝑁	0	𝑁	0