Carry operation
Warning
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Please see https://aka.ms/qdk.api for the API documentation for the Modern QDK.
Namespace: Microsoft.Quantum.Arithmetic
Package: Microsoft.Quantum.Standard
Implements a reversible carry gate. Given a carry-in bit encoded in
qubit carryIn
and two summand bits encoded in summand1
and summand2
,
computes the bitwise xor of carryIn
, summand1
and summand2
in the
qubit summand2
and the carry-out is xored to the qubit carryOut
.
operation Carry (carryIn : Qubit, summand1 : Qubit, summand2 : Qubit, carryOut : Qubit) : Unit is Adj + Ctl
Input
carryIn : Qubit
Carry-in qubit.
summand1 : Qubit
First summand qubit.
summand2 : Qubit
Second summand qubit, is replaced with the lower bit of the sum of
summand1
and summand2
.
carryOut : Qubit
Carry-out qubit, will be xored with the higher bit of the sum.
Output : Unit
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