Quantum error code#
Let code = QECC(encodeOp, decodeOp, syndMeasOp) Let syndMeasOp = SyndromeMeasOp(MeasureStabilizerGenerators([ For example, the BitFlipCode function function defines the ⟦3, 1, 1⟧ bit flip code: let encodeOp = EncodeOp(BitFlipEncoder) Associated with each stabilizer quantum code is the code length $n$, the number $k$ of logical qubits, and the minimum distance $d$, often conveniently grouped together in the notation ⟦$n$, $k$, $d$⟧. SyndromeMeasOp user defined type = (LogicalRegister => Syndrome): Denotes an operation that should be used to extract syndrome information from a code block, without disturbing the state protected by the code.įinally, the canon provides the QECC user defined type type to collect the other types required to define a quantum error-correcting code.DecodeOp user defined type = (LogicalRegister => (Qubit, Qubit)): Denotes than an operation decomposes a code block of an error correcting code into the data qubits and the auxiliary qubits used to represent syndrome information.EncodeOp user defined type = ((Qubit, Qubit) => LogicalRegister): Denotes that an operation takes qubits representing data along with fresh auxiliary qubits in order to produce a code block of an error-correcting code.
Quantum error how to#
In particular, we emphasize that recovery is a classical inference procedure which takes as its input the syndrome which occurred, and returns a prescription for how to fix any errors that may have occurred.Ī full introduction to the stabilizer formalism is beyond the scope of this section. We call these results a syndrome, and refer to the process of mapping a syndrome back to the error that caused it as recovery. Thus, the results of the two measurements uniquely determines which bit-flip error occurred, but without revealing any information about which state we encoded. We denote the results of each measurement by the sign of the eigenvalue that is observed, either $+$ or $-$, corresponding to the Q# Result values of Zero and One, respectively. To emphasize this, we repeat the table above, but add the results of measuring $Z_0 Z_1$ and $Z_1 Z_2$ on each row. Teamkill Media has not confirmed any sort of release window yet for Quantum Error, so it may still be a little while away before it is ready to be released.In classical computing, if one wants to protect a bit against errors, it can often suffice to represent that bit by a logical bit by repeating the data bit.įor instance, let $\overline$, so the result of measuring $Z_0 Z_1$ reveals useful information about which error occurred. The decision to go multiplatform came after a lot of interest following showcases for Quantum Error at industry events such as the Future Games Show and gamescom.
Originally revealed in March 2020 has a PlayStation exclusive, Quantum Error was confirmed a multiplatform title in September 2020. However, what starts as a rescue mission quickly plummets into darkness, when you arrive and find that things are not as they appear. Your mission is simple: save as many lives from the burning complex as possible and get out. Jacob Thomas – your partner Shane Costa and a crew by helicopter to the Monad Facility. Fire Chief Sturgis answers the call and sends you – Capt. The story description for Quantum Error says: When the Monad Quantum Research Facility – 30 miles off the shore of CA – is attacked by an unknown entity, engulfing the complex in flames and putting it into a full containment lock-down, a distress call is sent for mutual aid to the Garboa Fire Dept in San Francisco, CA.
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