,

0

⟩ )

b I {\displaystyle A} 1

If we however instead apply a quantum logic gate

Again, like the Pauli-X and Pauli-Y gate, the Pauli-Z gate acts on a single qubit and rotates the qubit around teh Z-axis of the Bloch Sphere by $$\pi$$ radians and has the property that $$X \longrightarrow -X$$ and $$Z \longrightarrow Z$$.

However, it is possible to perform classical computing using only reversible gates.

ϕ 2 11 0

11 )

given the output

n

{\displaystyle I}

gate; is a 3-bit gate, which is universal for classical computation but not for quantum computation. The rotation peformed is the opposite of the $$S$$ gate and is $$-\frac{\pi}{2}$$ around the Z-axis.

However two qubits that both in the ground state, $$|00\rangle$$, the matrix is: The three other combinations of possible states for two qubits are also represented by a $$4 \times 1$$ matrix.

ψ

| ⟩ 0

2

2 1 ⟩

!inc(x) is the inverse of inc(x) and instead performs the operation

Lets start with a matrix of the following form: The complex conjugate of a real number is the real number itself. {\displaystyle |01\rangle }

| ⟩

0 e {\displaystyle n} These gates are the quantum computing equivalent of logic gates in classical computers. ⟩

c

, thus showing that all reversible classical logic operations can be performed on a universal quantum computer. 0

0 0 1

1 ⋅ R ), A single-gate set of universal quantum gates can also be formulated using the three-qubit Deutsch gate , i A gate that operates on a single qubit is represented by a $$2 \times 2$$ unitary matrix.

0 is the probability amplitude for measurable state Access scientific knowledge from anywhere. ⟩

It is defined as.

) 1

H 2
a The difference in the sign, a $$-$$ instead of a $$+$$, indicates a difference in phase. ( |

2 The QX service only provides the $$S$$, $$S^\dagger$$, $$T$$, and $$T^\dagger$$ gates from this section. {\displaystyle H} quantum computation, which can be helpful to build quantum compiler and

00 To construct ) H ⟩

)

Even though the equalities holds, the probabilities for measuring the possible outcomes may change as a result of applying ⟩

(

1

+ These gates are functionally complete in the boolean logic domain. distinct states, similar to how a register of

The controlled-Hadamard gate acts on a control and target qubit. 0 1 F |

2

The key obstacle for quantum repeater and relay for implementation is the no-cloning theorem. Unmeasured I/O (sending qubits to remote computers without collapsing their quantum states) can be used to create networks of quantum computers.

The tensor product (or kronecker product) of two quantum gates is the gate that is equal to the two gates in parallel.. π A two-qubit gate can be implemented with a matrix of degree 2, axis.

{\displaystyle 2^{n}} 2

Orlando1, S. Gustavsson1, and W. D. Oliver , A Quantum Engineer's Guide to Superconducting Qubits , https://arxiv.org/abs/1904.06560, All figure content in this area was uploaded by Pradosh K. Roy, All content in this area was uploaded by Pradosh K. Roy on Aug 24, 2020, In the digital design , any computation is considered to be equivalent to the action of a circuit. qubits.

The probability of measuring a a ,

+

n

In effect, the individual qubits are in an undefined state.

The number of qubits in the input and output of the gate must be equal; a gate which acts on 0 Unitary inverses can also be used for uncomputation.

In this version, we perform the measurement in the middle of the circuit and based on results of the measurement we conditionally execute X and Z operators. to

( n

can be written in terms of these azimuth and elevation angles as: matrix is synonymous with the classical (reversible), Describe the action of the phase shift gate when considering the Bloch sphere, . | Initialization, measurement, I/O and spontaneous decoherence are side effects in quantum computers.

has the property that the individual qubits can be measured using any basis and will always present a 50/50 chance of resolving to each state. +

unchanged and maps i

will yield with equal probability either

multiplying a matrix by an identity matrix is similar to multiplying a number by ond). A quantum state 1

{\displaystyle {\frac {1}{\sqrt {2}}}(|++\rangle +|--\rangle )}

† +

0 For that, gates that operate on multiple qubits at the same time are necessary.

is the number of qubits that constitutes 1

Time moves from left to right, with wires used to represent the passage of time where the state is left alone.

(

π

The Hadamard gate H, phase-shift gate, T gate, and CNOT gate have the following matrix representation in the computational basis (CB) {|0〉,|1〉}: The Pauli operators, on the other hand, have the following matrix representation in the CB: The action of Pauli gates on an arbitrary qubit |ψ〉=a|0〉+b|1〉 is given as follows: So the action of an X gate is to introduce the bit flip, the action of a Z gate is to introduce the phase flip, and the action of a Y gate is to simultaneously introduce the bit and phase flips. 0 This results in $$a \pm ib = a \pm i0 = a$$. If a function †

{\displaystyle {\begin{bmatrix}1&0&0&0&0&0&0&0\\0&1&0&0&0&0&0&0\\0&0&1&0&0&0&0&0\\0&0&0&1&0&0&0&0\\0&0&0&0&1&0&0&0\\0&0&0&0&0&0&1&0\\0&0&0&0&0&1&0&0\\0&0&0&0&0&0&0&1\\\end{bmatrix}}}, The Ising gate (or XX gate) is a 2-qubit gate that is implemented natively in some trapped-ion quantum computers.

01 …

{\displaystyle D_{\theta }} {\displaystyle n}

So, H = X Y 1 / 2.
,

0

⟩ )

b I {\displaystyle A} 1

If we however instead apply a quantum logic gate

Again, like the Pauli-X and Pauli-Y gate, the Pauli-Z gate acts on a single qubit and rotates the qubit around teh Z-axis of the Bloch Sphere by $$\pi$$ radians and has the property that $$X \longrightarrow -X$$ and $$Z \longrightarrow Z$$.

However, it is possible to perform classical computing using only reversible gates.

ϕ 2 11 0

11 )

given the output

n

{\displaystyle I}

gate; is a 3-bit gate, which is universal for classical computation but not for quantum computation. The rotation peformed is the opposite of the $$S$$ gate and is $$-\frac{\pi}{2}$$ around the Z-axis.

However two qubits that both in the ground state, $$|00\rangle$$, the matrix is: The three other combinations of possible states for two qubits are also represented by a $$4 \times 1$$ matrix.

ψ

| ⟩ 0

2

2 1 ⟩

!inc(x) is the inverse of inc(x) and instead performs the operation

Lets start with a matrix of the following form: The complex conjugate of a real number is the real number itself. {\displaystyle |01\rangle }

| ⟩

0 e {\displaystyle n} These gates are the quantum computing equivalent of logic gates in classical computers. ⟩

c

, thus showing that all reversible classical logic operations can be performed on a universal quantum computer. 0

0 0 1

1 ⋅ R ), A single-gate set of universal quantum gates can also be formulated using the three-qubit Deutsch gate , i A gate that operates on a single qubit is represented by a $$2 \times 2$$ unitary matrix.

0 is the probability amplitude for measurable state Access scientific knowledge from anywhere. ⟩

It is defined as.

) 1

H 2
a The difference in the sign, a $$-$$ instead of a $$+$$, indicates a difference in phase. ( |

2 The QX service only provides the $$S$$, $$S^\dagger$$, $$T$$, and $$T^\dagger$$ gates from this section. {\displaystyle H} quantum computation, which can be helpful to build quantum compiler and

00 To construct ) H ⟩

)

Even though the equalities holds, the probabilities for measuring the possible outcomes may change as a result of applying ⟩

(

1

+ These gates are functionally complete in the boolean logic domain. distinct states, similar to how a register of

The controlled-Hadamard gate acts on a control and target qubit. 0 1 F |

2

The key obstacle for quantum repeater and relay for implementation is the no-cloning theorem. Unmeasured I/O (sending qubits to remote computers without collapsing their quantum states) can be used to create networks of quantum computers.

The tensor product (or kronecker product) of two quantum gates is the gate that is equal to the two gates in parallel.. π A two-qubit gate can be implemented with a matrix of degree 2, axis.

{\displaystyle 2^{n}} 2

Orlando1, S. Gustavsson1, and W. D. Oliver , A Quantum Engineer's Guide to Superconducting Qubits , https://arxiv.org/abs/1904.06560, All figure content in this area was uploaded by Pradosh K. Roy, All content in this area was uploaded by Pradosh K. Roy on Aug 24, 2020, In the digital design , any computation is considered to be equivalent to the action of a circuit. qubits.

The probability of measuring a a ,

+

n

In effect, the individual qubits are in an undefined state.

The number of qubits in the input and output of the gate must be equal; a gate which acts on 0 Unitary inverses can also be used for uncomputation.

In this version, we perform the measurement in the middle of the circuit and based on results of the measurement we conditionally execute X and Z operators. to

( n

can be written in terms of these azimuth and elevation angles as: matrix is synonymous with the classical (reversible), Describe the action of the phase shift gate when considering the Bloch sphere, . | Initialization, measurement, I/O and spontaneous decoherence are side effects in quantum computers.

has the property that the individual qubits can be measured using any basis and will always present a 50/50 chance of resolving to each state. +

unchanged and maps i

will yield with equal probability either

multiplying a matrix by an identity matrix is similar to multiplying a number by ond). A quantum state 1

{\displaystyle {\frac {1}{\sqrt {2}}}(|++\rangle +|--\rangle )}

† +

0 For that, gates that operate on multiple qubits at the same time are necessary.

is the number of qubits that constitutes 1

Time moves from left to right, with wires used to represent the passage of time where the state is left alone.

(

π

The Hadamard gate H, phase-shift gate, T gate, and CNOT gate have the following matrix representation in the computational basis (CB) {|0〉,|1〉}: The Pauli operators, on the other hand, have the following matrix representation in the CB: The action of Pauli gates on an arbitrary qubit |ψ〉=a|0〉+b|1〉 is given as follows: So the action of an X gate is to introduce the bit flip, the action of a Z gate is to introduce the phase flip, and the action of a Y gate is to simultaneously introduce the bit and phase flips. 0 This results in $$a \pm ib = a \pm i0 = a$$. If a function †

{\displaystyle {\begin{bmatrix}1&0&0&0&0&0&0&0\\0&1&0&0&0&0&0&0\\0&0&1&0&0&0&0&0\\0&0&0&1&0&0&0&0\\0&0&0&0&1&0&0&0\\0&0&0&0&0&0&1&0\\0&0&0&0&0&1&0&0\\0&0&0&0&0&0&0&1\\\end{bmatrix}}}, The Ising gate (or XX gate) is a 2-qubit gate that is implemented natively in some trapped-ion quantum computers.

01 …

{\displaystyle D_{\theta }} {\displaystyle n}

So, H = X Y 1 / 2.
,

0

⟩ )

b I {\displaystyle A} 1

If we however instead apply a quantum logic gate

Again, like the Pauli-X and Pauli-Y gate, the Pauli-Z gate acts on a single qubit and rotates the qubit around teh Z-axis of the Bloch Sphere by $$\pi$$ radians and has the property that $$X \longrightarrow -X$$ and $$Z \longrightarrow Z$$.

However, it is possible to perform classical computing using only reversible gates.

ϕ 2 11 0

11 )

given the output

n

{\displaystyle I}

gate; is a 3-bit gate, which is universal for classical computation but not for quantum computation. The rotation peformed is the opposite of the $$S$$ gate and is $$-\frac{\pi}{2}$$ around the Z-axis.

However two qubits that both in the ground state, $$|00\rangle$$, the matrix is: The three other combinations of possible states for two qubits are also represented by a $$4 \times 1$$ matrix.

ψ

| ⟩ 0

2

2 1 ⟩

!inc(x) is the inverse of inc(x) and instead performs the operation

Lets start with a matrix of the following form: The complex conjugate of a real number is the real number itself. {\displaystyle |01\rangle }

| ⟩

0 e {\displaystyle n} These gates are the quantum computing equivalent of logic gates in classical computers. ⟩

c

, thus showing that all reversible classical logic operations can be performed on a universal quantum computer. 0

0 0 1

1 ⋅ R ), A single-gate set of universal quantum gates can also be formulated using the three-qubit Deutsch gate , i A gate that operates on a single qubit is represented by a $$2 \times 2$$ unitary matrix.

0 is the probability amplitude for measurable state Access scientific knowledge from anywhere. ⟩

It is defined as.

) 1

H 2
a The difference in the sign, a $$-$$ instead of a $$+$$, indicates a difference in phase. ( |

2 The QX service only provides the $$S$$, $$S^\dagger$$, $$T$$, and $$T^\dagger$$ gates from this section. {\displaystyle H} quantum computation, which can be helpful to build quantum compiler and

00 To construct ) H ⟩

)

Even though the equalities holds, the probabilities for measuring the possible outcomes may change as a result of applying ⟩

(

1

+ These gates are functionally complete in the boolean logic domain. distinct states, similar to how a register of

The controlled-Hadamard gate acts on a control and target qubit. 0 1 F |

2

The key obstacle for quantum repeater and relay for implementation is the no-cloning theorem. Unmeasured I/O (sending qubits to remote computers without collapsing their quantum states) can be used to create networks of quantum computers.

The tensor product (or kronecker product) of two quantum gates is the gate that is equal to the two gates in parallel.. π A two-qubit gate can be implemented with a matrix of degree 2, axis.

{\displaystyle 2^{n}} 2

Orlando1, S. Gustavsson1, and W. D. Oliver , A Quantum Engineer's Guide to Superconducting Qubits , https://arxiv.org/abs/1904.06560, All figure content in this area was uploaded by Pradosh K. Roy, All content in this area was uploaded by Pradosh K. Roy on Aug 24, 2020, In the digital design , any computation is considered to be equivalent to the action of a circuit. qubits.

The probability of measuring a a ,

+

n

In effect, the individual qubits are in an undefined state.

The number of qubits in the input and output of the gate must be equal; a gate which acts on 0 Unitary inverses can also be used for uncomputation.

In this version, we perform the measurement in the middle of the circuit and based on results of the measurement we conditionally execute X and Z operators. to

( n

can be written in terms of these azimuth and elevation angles as: matrix is synonymous with the classical (reversible), Describe the action of the phase shift gate when considering the Bloch sphere, . | Initialization, measurement, I/O and spontaneous decoherence are side effects in quantum computers.

has the property that the individual qubits can be measured using any basis and will always present a 50/50 chance of resolving to each state. +

unchanged and maps i

will yield with equal probability either

multiplying a matrix by an identity matrix is similar to multiplying a number by ond). A quantum state 1

{\displaystyle {\frac {1}{\sqrt {2}}}(|++\rangle +|--\rangle )}

† +

0 For that, gates that operate on multiple qubits at the same time are necessary.

is the number of qubits that constitutes 1

Time moves from left to right, with wires used to represent the passage of time where the state is left alone.

(

π

The Hadamard gate H, phase-shift gate, T gate, and CNOT gate have the following matrix representation in the computational basis (CB) {|0〉,|1〉}: The Pauli operators, on the other hand, have the following matrix representation in the CB: The action of Pauli gates on an arbitrary qubit |ψ〉=a|0〉+b|1〉 is given as follows: So the action of an X gate is to introduce the bit flip, the action of a Z gate is to introduce the phase flip, and the action of a Y gate is to simultaneously introduce the bit and phase flips. 0 This results in $$a \pm ib = a \pm i0 = a$$. If a function †

{\displaystyle {\begin{bmatrix}1&0&0&0&0&0&0&0\\0&1&0&0&0&0&0&0\\0&0&1&0&0&0&0&0\\0&0&0&1&0&0&0&0\\0&0&0&0&1&0&0&0\\0&0&0&0&0&0&1&0\\0&0&0&0&0&1&0&0\\0&0&0&0&0&0&0&1\\\end{bmatrix}}}, The Ising gate (or XX gate) is a 2-qubit gate that is implemented natively in some trapped-ion quantum computers.

01 …

{\displaystyle D_{\theta }} {\displaystyle n}

So, H = X Y 1 / 2.
خانه / دسته‌بندی نشده / controlled hadamard gate

$$Z|0\rangle = |0\rangle$$) but it maps $$|1\rangle$$ to $$-|1\rangle$$.

On the other hand, an entangled state is any state that cannot be tensor-factorized, or in other words: An entangled state can not be written as a tensor product of its constituent qubits states. {\displaystyle |a|^{2}} By comparing the destination and source qubits we can conclude that the correct quantum state is teleported.

q

This effect can be used for computation, and is used in many algorithms. For example, a function that act on a "qubyte" (a register of 8 qubits) would be described as a matrix with {\displaystyle K} D n with 1 {\displaystyle |B\rangle =|A-3{\pmod {2^{n}}}\rangle }

,

0

⟩ )

b I {\displaystyle A} 1

If we however instead apply a quantum logic gate

Again, like the Pauli-X and Pauli-Y gate, the Pauli-Z gate acts on a single qubit and rotates the qubit around teh Z-axis of the Bloch Sphere by $$\pi$$ radians and has the property that $$X \longrightarrow -X$$ and $$Z \longrightarrow Z$$.

However, it is possible to perform classical computing using only reversible gates.

ϕ 2 11 0

11 )

given the output

n

{\displaystyle I}

gate; is a 3-bit gate, which is universal for classical computation but not for quantum computation. The rotation peformed is the opposite of the $$S$$ gate and is $$-\frac{\pi}{2}$$ around the Z-axis.

However two qubits that both in the ground state, $$|00\rangle$$, the matrix is: The three other combinations of possible states for two qubits are also represented by a $$4 \times 1$$ matrix.

ψ

| ⟩ 0

2

2 1 ⟩

!inc(x) is the inverse of inc(x) and instead performs the operation

Lets start with a matrix of the following form: The complex conjugate of a real number is the real number itself. {\displaystyle |01\rangle }

| ⟩

0 e {\displaystyle n} These gates are the quantum computing equivalent of logic gates in classical computers. ⟩

c

, thus showing that all reversible classical logic operations can be performed on a universal quantum computer. 0

0 0 1

1 ⋅ R ), A single-gate set of universal quantum gates can also be formulated using the three-qubit Deutsch gate , i A gate that operates on a single qubit is represented by a $$2 \times 2$$ unitary matrix.

0 is the probability amplitude for measurable state Access scientific knowledge from anywhere. ⟩

It is defined as.

) 1

H 2
a The difference in the sign, a $$-$$ instead of a $$+$$, indicates a difference in phase. ( |

2 The QX service only provides the $$S$$, $$S^\dagger$$, $$T$$, and $$T^\dagger$$ gates from this section. {\displaystyle H} quantum computation, which can be helpful to build quantum compiler and

00 To construct ) H ⟩

)

Even though the equalities holds, the probabilities for measuring the possible outcomes may change as a result of applying ⟩

(

1

+ These gates are functionally complete in the boolean logic domain. distinct states, similar to how a register of

The controlled-Hadamard gate acts on a control and target qubit. 0 1 F |

2

The key obstacle for quantum repeater and relay for implementation is the no-cloning theorem. Unmeasured I/O (sending qubits to remote computers without collapsing their quantum states) can be used to create networks of quantum computers.

The tensor product (or kronecker product) of two quantum gates is the gate that is equal to the two gates in parallel.. π A two-qubit gate can be implemented with a matrix of degree 2, axis.

{\displaystyle 2^{n}} 2

Orlando1, S. Gustavsson1, and W. D. Oliver , A Quantum Engineer's Guide to Superconducting Qubits , https://arxiv.org/abs/1904.06560, All figure content in this area was uploaded by Pradosh K. Roy, All content in this area was uploaded by Pradosh K. Roy on Aug 24, 2020, In the digital design , any computation is considered to be equivalent to the action of a circuit. qubits.

The probability of measuring a a ,

+

n

In effect, the individual qubits are in an undefined state.

The number of qubits in the input and output of the gate must be equal; a gate which acts on 0 Unitary inverses can also be used for uncomputation.

In this version, we perform the measurement in the middle of the circuit and based on results of the measurement we conditionally execute X and Z operators. to

( n

can be written in terms of these azimuth and elevation angles as: matrix is synonymous with the classical (reversible), Describe the action of the phase shift gate when considering the Bloch sphere, . | Initialization, measurement, I/O and spontaneous decoherence are side effects in quantum computers.

has the property that the individual qubits can be measured using any basis and will always present a 50/50 chance of resolving to each state. +

unchanged and maps i

will yield with equal probability either

multiplying a matrix by an identity matrix is similar to multiplying a number by ond). A quantum state 1

{\displaystyle {\frac {1}{\sqrt {2}}}(|++\rangle +|--\rangle )}

† +

0 For that, gates that operate on multiple qubits at the same time are necessary.

is the number of qubits that constitutes 1

Time moves from left to right, with wires used to represent the passage of time where the state is left alone.

(

π

The Hadamard gate H, phase-shift gate, T gate, and CNOT gate have the following matrix representation in the computational basis (CB) {|0〉,|1〉}: The Pauli operators, on the other hand, have the following matrix representation in the CB: The action of Pauli gates on an arbitrary qubit |ψ〉=a|0〉+b|1〉 is given as follows: So the action of an X gate is to introduce the bit flip, the action of a Z gate is to introduce the phase flip, and the action of a Y gate is to simultaneously introduce the bit and phase flips. 0 This results in $$a \pm ib = a \pm i0 = a$$. If a function †

{\displaystyle {\begin{bmatrix}1&0&0&0&0&0&0&0\\0&1&0&0&0&0&0&0\\0&0&1&0&0&0&0&0\\0&0&0&1&0&0&0&0\\0&0&0&0&1&0&0&0\\0&0&0&0&0&0&1&0\\0&0&0&0&0&1&0&0\\0&0&0&0&0&0&0&1\\\end{bmatrix}}}, The Ising gate (or XX gate) is a 2-qubit gate that is implemented natively in some trapped-ion quantum computers.

01 …

{\displaystyle D_{\theta }} {\displaystyle n}

So, H = X Y 1 / 2.

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