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Martin Vesely
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what What is meaning of 'up to a global phase'?

whatWhat is the importance of global phase  ? How its effectit affect a unit vector if we see it on a blochBloch sphere? whatWhat is the meaning of 'up to global phase' in exercise 4.3 of Nielsen and Chuang?

what is meaning of 'up to a global phase'?

what is the importance of global phase  ? How its effect a unit vector if we see it on a bloch sphere? what is the meaning of 'up to global phase' in exercise 4.3 of Nielsen and Chuang?

What is meaning of 'up to a global phase'?

What is the importance of global phase? How it affect a unit vector if we see it on a Bloch sphere? What is the meaning of 'up to global phase' in exercise 4.3 of Nielsen and Chuang?

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zircon
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what is meaning of 'up to a global phase'?

what is the importance of global phase ? How its effect a unit vector if we see it on a bloch sphere? what is the meaning of 'up to global phase' in exercise 4.3 of Nielsen and Chuang?