回到未来：利用经典计算实现量子飞跃（戴尔公司呈现）.pdf

1、Back to the future:Leveraging classical computeto make the quantum leapThe future is hereTime to take the leapCopyright Dell Inc.All Rights Reserved.2Copyright Dell Inc.All Rights Reserved.3An approach to developing&programming computing systems that is built on the foundations of quantum physicsEne

2、rgy demand:power draw from datacenters is quickly outpacing supplyQuantum computing:a primerMoores law:traditional compute is running into real physical limitationsCopyright Dell Inc.All Rights Reserved.4Superposition Probabilistic nature Read once Gates are rotationsClassical bitQuantum bit(Qubit)0

3、1A quantum bit,or qubit,is the basic unit of information for a quantum computer,analogous to a bit in ordinary machines.Qubits can represent the twostates corresponding to theclassic binary bits,a 0 or 1.Also,theycanmaintainasuperposition of both statessimultaneously.A bit is the smallest unit used

4、in classical computing.It is an entity that can be either 0 or 1,and sets of bits are acted on by gates.As an example,the NOT gate turns a 0 into 1 and vice versa.01A+BprobabilitiesThe zeroes&ones of itInternal Use-ConfidentialCopyright Dell Inc.All Rights Reserved.5How to program for QC A quantum c

5、ircuit is a list of(quantum)gates applied sequentially to a set of qubits.Gates affecting a single qubit will place them into superposition,while gates affecting 2 or more entangles those qubits.HHHHHTTTTTTYYXXX(a)A 4x1 universal random quantum circuit(b)The“bristle-brush”pattern formed by the gates

6、 applied to qubit q1It is the set of gates(infinite,limited only by mechanical precision)that lend quantumcircuits potential advantage over classical processors!Copyright Dell Inc.All Rights Reserved.6Lets talk modalitiesDell is modality-agnosticAdvantagesDisadvantagesTop Use CasesSuperconductingQub