Reaches 2 mK[ref]. youtu.be/upw9nkjawdy?t=487 from Video "Building a quantum computer with superconducting qubits by Daniel Sank (2019)" mentions that 15 mK are widely available.
Used for example in some times of quantum computers, notably superconducting quantum computers. As mentioned at: youtu.be/uPw9nkJAwDY?t=487, in that case we need to go so low to reduce thermal noise.
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A refrigerator is a household appliance that is used to store food and beverages at low temperatures to slow down bacterial growth and preserve freshness. It works by removing heat from the interior and transferring it to the environment, typically using a refrigeration cycle that involves a refrigerant. Most modern refrigerators also include a freezer compartment for storing frozen foods. Key components of a refrigerator include: 1. **Compressor**: The motor that circulates refrigerant through the system.