📜  位与量子位之间的差异

📅  最后修改于: 2021-06-28 15:19:22             🧑  作者: Mango

1.位:
它是一个单一的信息单元,其值为0或1(关闭或打开,错误或正确,低或高)。

2.量子位:
在量子计算中,量子位或量子位是量子信息的基本单位,这是用二态设备物理实现的经典二进制位的量子形式。量子位是一个两态量子力学系统,是显示量子力学特殊性的最简单的量子系统之一。

量子计算中位与位的区别:

S.NO BITS QUBITS
1. The device computes by manipulating those bits with the help of logical gates (AND, OR, NOT). The device computes by manipulating those bits with the help of quantum logic gates.
2. A classical computer has a memory made up of bits where each bit hold either a one or zero. A qubits (quantum bits) can hold a one, a zero or crucially a superposition of these.
3. Bits are used in classical computers. Qubits(Quantum bits) are use in quantum computer
4. Information is stored in bits, which take the discrete values 0 and 1. Information is stored in quantum bits, or qbits. A qbit can be in states labelled |0} and |1}, but it can also be in a superposition of these states, a|0} + b|1}, where a and b are complex numbers. If we think of the state of a qbit as a vector, then superposition of states is just vector addition.
5. For example, if storing one number takes 64 bits, then storing N numbers takes N times 64 bits. For example, for every extra qbit you get, you can store twice as many numbers. For example, with 3 qbits, you get coefficients for |000}, |001}, |010}, |011}, |100}, |101}, |110} and |111}.
6. Bits are slow. Qubits are faster.
7. Its circuit behaviour based on classical physics. Its circuit behaviour based on quantum mechanics.