In the Elitzur-Vaidman bomb scenario, if the query qubit gets measured even when no bomb is present, then the bomb tester no longer works.

In Wiesner’s original quantum money scheme, the bank can guarantee security with high probability even if it returns bills after checking them.

In the Elitzur-Vaidman bomb experiment, the probability of setting off the bomb (using quantum probes) can be made arbitrarily small, but not zero.

The BB84 QKD scheme requires both a quantum channel and an authenticated classical channel.

A state of qubits is a unit vector in the -dimensional space .

After Alice and Bob do quantum teleportation, their Bell pair remains entangled.

Given the following definition of a class named Product, write a class named Smartphone that inherits from the Product class.  public class Product {   public void displayPrice(int discount) {      System.out.println(“Product discount: ” + discount + “%”);   }} Within the child class, you should have four properly encapsulated instance variables: • String model• double price• Processor processor• int[] ratings NOTE: You may assume that Processor contains an appropriate copy constructor and a properly implemented equals method. Within the Smartphone class, define an appropriate constructor that takes in four parameters with the following names and in the following order: • String model• double price• Processor processor• int[] ratings These parameters should be used to properly initialize their corresponding instance variables. This constructor MUST make deep copies, only when appropriate. You should also define a copy constructor, and it MUST chain to the 4-args deep-copying constructor.HINT: this is all the copy constructor needs to do! Override the displayPrice method from the Product class. The overridden method MUST use printf to display the state of the Smartphone instance in the following format: [m,p,pr,len]=[,,,] NOTE: No angle brackets should be present in the output. They signify placeholders for the output of state information. Any floating-point values MUST be displayed to THREE decimal places. Finally, correctly override the equals method with a symmetric implementation. Two objects of class Smartphone are considered equal if their model, price, processor, and the ratings array have equal state. For the ratings array, this means both arrays must have equal length with identical values in the same positions. NOTE: You may assume that the reference fields of either instance will not be null. There is also no state or valid equals method in the parent class. IMPORTANT: You MAY NOT write any getters or additional methods within this class.   Make sure to select the ‘Preformatted’ style from the dropdown so your code is formatted clearly. DO NOT USE THE TAB KEY WHEN WRITING CODE AS YOU MAY ACCIDENTALLY SUBMIT YOUR EXAM. USE THE SPACE BAR INSTEAD.

Which band includes only thin filaments but not thick filaments?

Which of the following desceibe a fast twitching muscle?

Please identify “B”.