prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  [PYTEST WARNING] QasmSimulator will be deprecated
  ### Feature description
  
  The use of `q.Aer.get_backend("qasm_simulator")` raises the warning
  ```
  /opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/qiskit_aer/backends/qasm_simulator.py:360: PendingDeprecationWarning: The `QasmSimulator` backend will be deprecated in the future. It has been superseded by the `AerSimulator` backend.
      warn('The `QasmSimulator` backend will be deprecated in the'
  ```
  This code is found in the following files:
      - deutsch_jozsa @abhishekjiitr 
      - half_adder @abhishekjiitr 
      - not_gate @abhishekjiitr 
      - single_quibit_measure @abhishekjiitr 
  
  origin: #7211
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `quantum/superdense_coding.py`
  Content:
  ```
  1 """
  2 Build the superdense coding protocol. This quantum
  3 circuit can send two classical bits using one quantum
  4 bit. This circuit is designed using the Qiskit
  5 framework. This experiment run in IBM Q simulator
  6 with 1000 shots.
  7 .
  8 References:
  9 https://qiskit.org/textbook/ch-algorithms/superdense-coding.html
  10 https://en.wikipedia.org/wiki/Superdense_coding
  11 """
  12 
  13 import math
  14 
  15 import qiskit
  16 from qiskit import Aer, ClassicalRegister, QuantumCircuit, QuantumRegister, execute
  17 
  18 
  19 def superdense_coding(bit_1: int = 1, bit_2: int = 1) -> qiskit.result.counts.Counts:
  20     """
  21     The input refer to the classical message
  22     that you wants to send. {'00','01','10','11'}
  23     result for default values: {11: 1000}
  24                ┌───┐          ┌───┐
  25     qr_0: ─────┤ X ├──────────┤ X ├─────
  26           ┌───┐└─┬─┘┌───┐┌───┐└─┬─┘┌───┐
  27     qr_1: ┤ H ├──■──┤ X ├┤ Z ├──■──┤ H ├
  28           └───┘     └───┘└───┘     └───┘
  29     cr: 2/══════════════════════════════
  30     Args:
  31         bit_1: bit 1 of classical information to send.
  32         bit_2: bit 2 of classical information to send.
  33     Returns:
  34         qiskit.result.counts.Counts: counts of send state.
  35     >>> superdense_coding(0,0)
  36     {'00': 1000}
  37     >>> superdense_coding(0,1)
  38     {'01': 1000}
  39     >>> superdense_coding(-1,0)
  40     Traceback (most recent call last):
  41         ...
  42     ValueError: inputs must be positive.
  43     >>> superdense_coding(1,'j')
  44     Traceback (most recent call last):
  45         ...
  46     TypeError: inputs must be integers.
  47     >>> superdense_coding(1,0.5)
  48     Traceback (most recent call last):
  49         ...
  50     ValueError: inputs must be exact integers.
  51     >>> superdense_coding(2,1)
  52     Traceback (most recent call last):
  53         ...
  54     ValueError: inputs must be less or equal to 1.
  55     """
  56     if (type(bit_1) == str) or (type(bit_2) == str):
  57         raise TypeError("inputs must be integers.")
  58     if (bit_1 < 0) or (bit_2 < 0):
  59         raise ValueError("inputs must be positive.")
  60     if (math.floor(bit_1) != bit_1) or (math.floor(bit_2) != bit_2):
  61         raise ValueError("inputs must be exact integers.")
  62     if (bit_1 > 1) or (bit_2 > 1):
  63         raise ValueError("inputs must be less or equal to 1.")
  64 
  65     # build registers
  66     qr = QuantumRegister(2, "qr")
  67     cr = ClassicalRegister(2, "cr")
  68 
  69     quantum_circuit = QuantumCircuit(qr, cr)
  70 
  71     # entanglement the qubits
  72     quantum_circuit.h(1)
  73     quantum_circuit.cx(1, 0)
  74 
  75     # send the information
  76     c_information = str(bit_1) + str(bit_2)
  77 
  78     if c_information == "11":
  79         quantum_circuit.x(1)
  80         quantum_circuit.z(1)
  81     elif c_information == "10":
  82         quantum_circuit.z(1)
  83     elif c_information == "01":
  84         quantum_circuit.x(1)
  85     else:
  86         quantum_circuit.i(1)
  87 
  88     # unentangled the circuit
  89     quantum_circuit.cx(1, 0)
  90     quantum_circuit.h(1)
  91 
  92     # measure the circuit
  93     quantum_circuit.measure(qr, cr)
  94 
  95     backend = Aer.get_backend("qasm_simulator")
  96     job = execute(quantum_circuit, backend, shots=1000)
  97 
  98     return job.result().get_counts(quantum_circuit)
  99 
  100 
  101 if __name__ == "__main__":
  102     print(f"Counts for classical state send: {superdense_coding(1,1)}")
  103
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/quantum/superdense_coding.py b/quantum/superdense_coding.py
  --- a/quantum/superdense_coding.py
  +++ b/quantum/superdense_coding.py
  @@ -92,7 +92,7 @@
       # measure the circuit
       quantum_circuit.measure(qr, cr)
   
  -    backend = Aer.get_backend("qasm_simulator")
  +    backend = Aer.get_backend("aer_simulator")
       job = execute(quantum_circuit, backend, shots=1000)
   
       return job.result().get_counts(quantum_circuit)
  
verification_info: {"golden_diff": "diff --git a/quantum/superdense_coding.py b/quantum/superdense_coding.py\n--- a/quantum/superdense_coding.py\n+++ b/quantum/superdense_coding.py\n@@ -92,7 +92,7 @@\n     # measure the circuit\n     quantum_circuit.measure(qr, cr)\n \n-    backend = Aer.get_backend(\"qasm_simulator\")\n+    backend = Aer.get_backend(\"aer_simulator\")\n     job = execute(quantum_circuit, backend, shots=1000)\n \n     return job.result().get_counts(quantum_circuit)\n", "issue": "[PYTEST WARNING] QasmSimulator will be deprecated\n### Feature description\n\nThe use of `q.Aer.get_backend(\"qasm_simulator\")` raises the warning\r\n```\r\n/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/qiskit_aer/backends/qasm_simulator.py:360: PendingDeprecationWarning: The `QasmSimulator` backend will be deprecated in the future. It has been superseded by the `AerSimulator` backend.\r\n    warn('The `QasmSimulator` backend will be deprecated in the'\r\n```\r\nThis code is found in the following files:\r\n    - deutsch_jozsa @abhishekjiitr \r\n    - half_adder @abhishekjiitr \r\n    - not_gate @abhishekjiitr \r\n    - single_quibit_measure @abhishekjiitr \r\n\r\norigin: #7211\n", "before_files": [{"content": "\"\"\"\nBuild the superdense coding protocol. This quantum\ncircuit can send two classical bits using one quantum\nbit. This circuit is designed using the Qiskit\nframework. This experiment run in IBM Q simulator\nwith 1000 shots.\n.\nReferences:\nhttps://qiskit.org/textbook/ch-algorithms/superdense-coding.html\nhttps://en.wikipedia.org/wiki/Superdense_coding\n\"\"\"\n\nimport math\n\nimport qiskit\nfrom qiskit import Aer, ClassicalRegister, QuantumCircuit, QuantumRegister, execute\n\n\ndef superdense_coding(bit_1: int = 1, bit_2: int = 1) -> qiskit.result.counts.Counts:\n    \"\"\"\n    The input refer to the classical message\n    that you wants to send. {'00','01','10','11'}\n    result for default values: {11: 1000}\n               \u250c\u2500\u2500\u2500\u2510          \u250c\u2500\u2500\u2500\u2510\n    qr_0: \u2500\u2500\u2500\u2500\u2500\u2524 X \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524 X \u251c\u2500\u2500\u2500\u2500\u2500\n          \u250c\u2500\u2500\u2500\u2510\u2514\u2500\u252c\u2500\u2518\u250c\u2500\u2500\u2500\u2510\u250c\u2500\u2500\u2500\u2510\u2514\u2500\u252c\u2500\u2518\u250c\u2500\u2500\u2500\u2510\n    qr_1: \u2524 H \u251c\u2500\u2500\u25a0\u2500\u2500\u2524 X \u251c\u2524 Z \u251c\u2500\u2500\u25a0\u2500\u2500\u2524 H \u251c\n          \u2514\u2500\u2500\u2500\u2518     \u2514\u2500\u2500\u2500\u2518\u2514\u2500\u2500\u2500\u2518     \u2514\u2500\u2500\u2500\u2518\n    cr: 2/\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n    Args:\n        bit_1: bit 1 of classical information to send.\n        bit_2: bit 2 of classical information to send.\n    Returns:\n        qiskit.result.counts.Counts: counts of send state.\n    >>> superdense_coding(0,0)\n    {'00': 1000}\n    >>> superdense_coding(0,1)\n    {'01': 1000}\n    >>> superdense_coding(-1,0)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be positive.\n    >>> superdense_coding(1,'j')\n    Traceback (most recent call last):\n        ...\n    TypeError: inputs must be integers.\n    >>> superdense_coding(1,0.5)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be exact integers.\n    >>> superdense_coding(2,1)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be less or equal to 1.\n    \"\"\"\n    if (type(bit_1) == str) or (type(bit_2) == str):\n        raise TypeError(\"inputs must be integers.\")\n    if (bit_1 < 0) or (bit_2 < 0):\n        raise ValueError(\"inputs must be positive.\")\n    if (math.floor(bit_1) != bit_1) or (math.floor(bit_2) != bit_2):\n        raise ValueError(\"inputs must be exact integers.\")\n    if (bit_1 > 1) or (bit_2 > 1):\n        raise ValueError(\"inputs must be less or equal to 1.\")\n\n    # build registers\n    qr = QuantumRegister(2, \"qr\")\n    cr = ClassicalRegister(2, \"cr\")\n\n    quantum_circuit = QuantumCircuit(qr, cr)\n\n    # entanglement the qubits\n    quantum_circuit.h(1)\n    quantum_circuit.cx(1, 0)\n\n    # send the information\n    c_information = str(bit_1) + str(bit_2)\n\n    if c_information == \"11\":\n        quantum_circuit.x(1)\n        quantum_circuit.z(1)\n    elif c_information == \"10\":\n        quantum_circuit.z(1)\n    elif c_information == \"01\":\n        quantum_circuit.x(1)\n    else:\n        quantum_circuit.i(1)\n\n    # unentangled the circuit\n    quantum_circuit.cx(1, 0)\n    quantum_circuit.h(1)\n\n    # measure the circuit\n    quantum_circuit.measure(qr, cr)\n\n    backend = Aer.get_backend(\"qasm_simulator\")\n    job = execute(quantum_circuit, backend, shots=1000)\n\n    return job.result().get_counts(quantum_circuit)\n\n\nif __name__ == \"__main__\":\n    print(f\"Counts for classical state send: {superdense_coding(1,1)}\")\n", "path": "quantum/superdense_coding.py"}], "after_files": [{"content": "\"\"\"\nBuild the superdense coding protocol. This quantum\ncircuit can send two classical bits using one quantum\nbit. This circuit is designed using the Qiskit\nframework. This experiment run in IBM Q simulator\nwith 1000 shots.\n.\nReferences:\nhttps://qiskit.org/textbook/ch-algorithms/superdense-coding.html\nhttps://en.wikipedia.org/wiki/Superdense_coding\n\"\"\"\n\nimport math\n\nimport qiskit\nfrom qiskit import Aer, ClassicalRegister, QuantumCircuit, QuantumRegister, execute\n\n\ndef superdense_coding(bit_1: int = 1, bit_2: int = 1) -> qiskit.result.counts.Counts:\n    \"\"\"\n    The input refer to the classical message\n    that you wants to send. {'00','01','10','11'}\n    result for default values: {11: 1000}\n               \u250c\u2500\u2500\u2500\u2510          \u250c\u2500\u2500\u2500\u2510\n    qr_0: \u2500\u2500\u2500\u2500\u2500\u2524 X \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524 X \u251c\u2500\u2500\u2500\u2500\u2500\n          \u250c\u2500\u2500\u2500\u2510\u2514\u2500\u252c\u2500\u2518\u250c\u2500\u2500\u2500\u2510\u250c\u2500\u2500\u2500\u2510\u2514\u2500\u252c\u2500\u2518\u250c\u2500\u2500\u2500\u2510\n    qr_1: \u2524 H \u251c\u2500\u2500\u25a0\u2500\u2500\u2524 X \u251c\u2524 Z \u251c\u2500\u2500\u25a0\u2500\u2500\u2524 H \u251c\n          \u2514\u2500\u2500\u2500\u2518     \u2514\u2500\u2500\u2500\u2518\u2514\u2500\u2500\u2500\u2518     \u2514\u2500\u2500\u2500\u2518\n    cr: 2/\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n    Args:\n        bit_1: bit 1 of classical information to send.\n        bit_2: bit 2 of classical information to send.\n    Returns:\n        qiskit.result.counts.Counts: counts of send state.\n    >>> superdense_coding(0,0)\n    {'00': 1000}\n    >>> superdense_coding(0,1)\n    {'01': 1000}\n    >>> superdense_coding(-1,0)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be positive.\n    >>> superdense_coding(1,'j')\n    Traceback (most recent call last):\n        ...\n    TypeError: inputs must be integers.\n    >>> superdense_coding(1,0.5)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be exact integers.\n    >>> superdense_coding(2,1)\n    Traceback (most recent call last):\n        ...\n    ValueError: inputs must be less or equal to 1.\n    \"\"\"\n    if (type(bit_1) == str) or (type(bit_2) == str):\n        raise TypeError(\"inputs must be integers.\")\n    if (bit_1 < 0) or (bit_2 < 0):\n        raise ValueError(\"inputs must be positive.\")\n    if (math.floor(bit_1) != bit_1) or (math.floor(bit_2) != bit_2):\n        raise ValueError(\"inputs must be exact integers.\")\n    if (bit_1 > 1) or (bit_2 > 1):\n        raise ValueError(\"inputs must be less or equal to 1.\")\n\n    # build registers\n    qr = QuantumRegister(2, \"qr\")\n    cr = ClassicalRegister(2, \"cr\")\n\n    quantum_circuit = QuantumCircuit(qr, cr)\n\n    # entanglement the qubits\n    quantum_circuit.h(1)\n    quantum_circuit.cx(1, 0)\n\n    # send the information\n    c_information = str(bit_1) + str(bit_2)\n\n    if c_information == \"11\":\n        quantum_circuit.x(1)\n        quantum_circuit.z(1)\n    elif c_information == \"10\":\n        quantum_circuit.z(1)\n    elif c_information == \"01\":\n        quantum_circuit.x(1)\n    else:\n        quantum_circuit.i(1)\n\n    # unentangled the circuit\n    quantum_circuit.cx(1, 0)\n    quantum_circuit.h(1)\n\n    # measure the circuit\n    quantum_circuit.measure(qr, cr)\n\n    backend = Aer.get_backend(\"aer_simulator\")\n    job = execute(quantum_circuit, backend, shots=1000)\n\n    return job.result().get_counts(quantum_circuit)\n\n\nif __name__ == \"__main__\":\n    print(f\"Counts for classical state send: {superdense_coding(1,1)}\")\n", "path": "quantum/superdense_coding.py"}]}